source string | id string | question string | options list | answer string | reasoning string |
|---|---|---|---|---|---|
OpenBookQA | OpenBookQA-2201 | However, this includes the solution when $$x_1,x_2,x_3,x_4,x_5=0$$, which is explicitly stated in the problem to be excluded. Hence our final answer is $$\boxed{6187}$$.
Questions like this are often worded ambiguously, forcing you to figure out a sensible interpretation. In this case, you aren't told whether differen... | [
"meal",
"thought",
"dollar",
"peek"
] | D | the color of an object can be discovered by looking at that object |
OpenBookQA | OpenBookQA-2202 | evolution, species
Title: Parents that eat their own children I am told that there are some species, like fish or rabbits, that if let, will eat their own children. If this is true, how does a species like this exist? Shouldn't the fact that they kill their own lineage make them nonviable? Yes, it is true.
Prairie dog... | [
"it is troubled",
"it is hairy",
"it is hungry",
"it is alive"
] | D | living things can all reproduce |
OpenBookQA | OpenBookQA-2203 | species-identification, ornithology
Why would a mother do that to her young? Does she hates the little one? Not at all. It’s just that those little birds were made to fly, and they don’t know it, so she is going to push them out of the nest. She never lets them hit bottom, but she does let them fall, because they have... | [
"instinctual",
"considerate",
"learned",
"a given"
] | A | an animal knows how to do instinctive behaviors when it is born |
OpenBookQA | OpenBookQA-2204 | h. Evaluate C.
i. Compute Q(7), the amount of glucose produced during the day.
Exercise 10.3.5 “Based on studies using isolated animal pancreas preparations
maintained in vitro, it has been determined that insulin is secreted in a biphasic manner in response to a marked increase in blood glucose. There is an initial... | [
"sigh",
"touch",
"think",
"consider"
] | A | an organism breaking down sugar is a source of carbon dioxide |
OpenBookQA | OpenBookQA-2205 | anatomy, scales
If this horse is 500 kg (a mid-range mass for horses), each leg would have to support 125 kg, compared to only 37.5 kg for a 75 kg adult. Why don't we see a corresponding difference in cross-section? Elephant, rhinoceros, &c all have much thicker legs in proportion. The answer, I think, lies in the fa... | [
"friend's",
"neighbor's",
"father's",
"owner's"
] | C | the thickness of the parts of an organism is an inherited characteristic |
OpenBookQA | OpenBookQA-2206 | c#, .net
...
KickCat(new MuteCat()); // I love this cat, it's like it doesn't even care!
KickCat(new LoudCat()); // Whines, blah.
KickCat(new StrangeCat(true)); // Whines this time.
KickCat(new StrangeCat(false)); // Doesn't whine this time! Woot!
The following is multiple choice question (with options) to answer.
E... | [
"the kitten was a year old",
"the kitten wanted meat",
"the kitten didn't need milk",
"the kitten wanted milk on a regular cycle"
] | D | a cycle occurs repeatedly |
OpenBookQA | OpenBookQA-2207 | electric-circuits, home-experiment
Title: Why does this circuit work and the other doesn't?
if we connect the set up like this the bulb glows but if we connect the [right wire] to the [earth of the left] then the bulb [doesn't glow].
Why does that happen?
if we connect the set up like this the bulb glows
If the pin... | [
"the bulb needs to be charged",
"the room is too bright",
"the circuit is incomplete",
"it ran out of electricity"
] | C | electricity can not flow through an open circuit |
OpenBookQA | OpenBookQA-2208 | visible-light, sun, weather
Title: Why are clouds lighter than the sky during the day but darker at night This is probably a very basic question but I couldn't find a good answer to it, most search results are about rain clouds or clouds appearing red at night (something I've never seen except for during sunset but ap... | [
"wilt",
"precipitate",
"burn",
"zap"
] | B | An example of stormy weather is rain |
OpenBookQA | OpenBookQA-2209 | 4. A contractor estimated that his 10-man crew could complete the construction in 110 days if there was no rain. (Assume the crew does not work on any rainy day and rain is the only factor that can deter the crew from working). However, on the 61-st day, after 5 days of rain, he hired 6 more people and finished the pro... | [
"wood",
"gone",
"full",
"emptier"
] | D | if a liquid disappears then that liquid probably evaporated |
OpenBookQA | OpenBookQA-2210 | Live Urban Brown Before And After, Excel Vba Create Pivot Table With Data Model, Waterproof Ipad Mini 4 Case, Double Trough Sink, Basic Warehousing Procedures, Temporary Wheelchair Ramp Rental, Will Frontline Still Work If My Cat Licks It, Text Detection In Images, Door Lever With Push Button Lock,
The following is mu... | [
"feed a family",
"make some money",
"reflect all light",
"eat a cookie"
] | C | a white object reflects all visible light |
OpenBookQA | OpenBookQA-2211 | gravity, water, space, planets
The only detail left is how to get a surface temperature that's in the right range for the surface to be liquid. This depends on the distance from the star, but also on the composition of the atmosphere. On Earth, the atmosphere's composition is mostly due to the action of the biosphere,... | [
"be dwarfed by land",
"outnumber amounts of land",
"be less than land amounts",
"be smaller than land"
] | B | oceans cover 70% of the surface of the earth |
OpenBookQA | OpenBookQA-2212 | python, beginner, game, functional-programming, adventure-game
winter = '\n' + '''29 January 2029. It is five weeks into winter and the season shows no mercy. A drought happened for a majority of the last fall and it devastated
the food supply. As your community dives deeper into the winter, you realize that your sup... | [
"snowblower",
"shovel",
"underground pool",
"heat lamp"
] | D | a plant light is used for help plants by mimicking sunlight |
OpenBookQA | OpenBookQA-2213 | java, repository
unlink(node);
linkLast(node);
}
private static class Node<K, V> extends SimpleEntry<K, V> {
private static final long serialVersionUID = 1L;
private Node<K, V> prev = null;
private Node<K, V> next = null;
private long expirationTime;
private... | [
"balloons with helium gas",
"their favorite new shoes",
"a comfortable sitting chair",
"ability to experience respiration"
] | D | an animal requires air for survival |
OpenBookQA | OpenBookQA-2214 | quantum-mechanics, quantum-information, superposition
When the compass needle points north, that is like a qubit being in the state $\lvert 0\rangle$, and when the compass needle points east, that is like a qubit being in the state $\lvert 1\rangle$. But a compass needle can also point northeast. The direction northea... | [
"unknown circumstances",
"magnetic pants",
"Earth's pull",
"magnetic shoes"
] | C | a compass 's needle lines up with Earth 's magnetic poles |
OpenBookQA | OpenBookQA-2215 | soil, moon
Title: What is the difference between lunar and earth soil I know that the moon has lunar regolith and earth has earth soil, but what is the difference between them? The single biggest difference is the lack of chemical weathering in lunar soils which are subject to physical weathering almost exclusively. I... | [
"a planter",
"a painted house",
"a bamboo stalk",
"an industrial plant"
] | C | a plant requires soil for to grow |
OpenBookQA | OpenBookQA-2216 | thermodynamics
Also, if anyone thinks the scoop is going to explode, please mention that too.
Thanks!
*I don't want to use ice because it will water down the coffee. I don't want to use coffee ice cubes because I'm lazy and also I don't have room in my freezer for an extra tray. I don't want to use metal ice cubes o... | [
"a metal chair",
"a flat napkin",
"an electrical plate",
"a wood table"
] | C | a hot plate is a source of heat |
OpenBookQA | OpenBookQA-2217 | evolution, zoology, taxonomy, phylogenetics
The apomorphy that defines the tetrapods is "paired limbs". You have Amphibia to the left and Amniota to the right, whose apomorphy is " egg with extraembrionic membranes". Inside them, you have Reptilia, whose apomorphies are "skull with upper and lower fenestra and beta-ke... | [
"decrease turtle numbers",
"boost hatching numbers",
"stop hatching young",
"eat more sand"
] | B | as the number of eggs laid by an animal increases , the number of eggs that hatch will increase |
OpenBookQA | OpenBookQA-2218 | ## The Attempt at a Solution
I tried to do 1. another way:
The probability that all theses events will occur: 1/4 * 1/3 * 1/2 = 1/24
1-(1/24) = 23/24
Obviously this is wrong. Is the reason it is wrong, because: the complement of "all of these events will occur" is that "not all of these events will occur," meaning,... | [
"a female fly lays eggs while it is an adult",
"a female fly lays eggs while it is a larvae",
"a male fly lays eggs while it is an adult",
"a male fly lays eggs while it is a larvae"
] | A | a female insect lays eggs during the adult stage of an insect 's life cycle |
OpenBookQA | OpenBookQA-2219 | star, data-analysis, star-cluster, globular-clusters
Title: Dataset containing list of known globular clusters Does anybody know if there is an existing dataset that consists of all known star clusters, their name, and their apparent dimensions or similar? Is it possible to make a query to, or download all SIMBAD obje... | [
"a plane and a helicopter",
"Venus and the Kuiper belt",
"space shuttles and rocket launch platforms",
"the ISS, the moon, Europa"
] | D | a satellite orbits a planet |
OpenBookQA | OpenBookQA-2220 | zoology, ecology, diet, predation
Cheetahs have been reported to suffer from intraguild competition by lions Panthera leo, spotted hyenas Crocuta crocuta and occasionally leopards Panthera pardus. These larger predators represent a threat to the smaller-bodied cheetahs as they can affect their food intake by limiting ... | [
"growth",
"encouragement",
"consideration",
"ruination"
] | D | harming an animal species causes that animal 's population to decrease |
OpenBookQA | OpenBookQA-2221 | python, python-3.x, game
continue
player.gold -= choice.value
player.inventory.append(choice)
print(f'--- You bought a {choice} for {choice.value} gold.')
class Slime(Character):
The following is multiple choice question (with options) to answer.
A person wants to collect green sli... | [
"damp gutters",
"neat pictures",
"old dogs",
"dry bones"
] | A | algae is found in bodies of water |
OpenBookQA | OpenBookQA-2222 | the-sun, earth
Title: If the Sun got larger, but maintained its luminosity, would the Earth get hotter or colder? A recent question If the Sun were bigger but colder, Earth would be hotter or colder? asked - if the Sun got bigger and cooler, would the Earth heat up or cool down. I think the answer to that is mainly th... | [
"hollow",
"local",
"furthest",
"dark"
] | B | the Sun is the star that is closest to Earth |
OpenBookQA | OpenBookQA-2223 | reference-request, machine-learning, combinatorics, optimization, search-problem
Reproduction and Mutation
Once you have selected your survivors of one round, you have to create the next generation from them (do the parents survive and are part of the next generation?). There are two major strategies: mutation and rec... | [
"plant dishes",
"produce ovum",
"make money",
"litter carpet"
] | B | An example of reproduction is laying eggs |
OpenBookQA | OpenBookQA-2224 | theoretical-biology, hematology, red-blood-cell
**As an intern, I once had the very sorrowful experience of admitting an healthy appearing, exuberant 4 year old child to the pediatric surgical service. The only presenting symptom was that the child started squatting during exertion (not good), and on exam, had a murmu... | [
"buying them things",
"hitting them",
"loving them",
"hugging them"
] | B | harming something has a negative impact on that something |
OpenBookQA | OpenBookQA-2225 | metal, toxicity, radioactivity
239Pu's radioactivity is in the form of alpha particles, which are only dangerous if emitted internally, because they can't penetrate the epidermis. The hazard then seems to me like it would depend crucially on how the internal exposure occurred. If you eat an alpha emitter, then it wil... | [
"process of purging",
"process of circulation",
"process of respiration",
"process of cooking"
] | A | the excretory system removes waste from the body |
OpenBookQA | OpenBookQA-2226 | thermodynamics
Say you own a theme park where, every hour, each adult has to pay ${\rm d}\mu_a=\$7$ (money=energy) and each kid has to pay ${\rm d}\mu_k=\$3$.
We assign positive signs to when they put money out of their pockets.
If there are $n_a=10$ adults and $n_k=5$ kids in the park, and if this number of people ... | [
"a monkey with a puncture wound to get better",
"pencils to lay flat on a desk",
"paper to flutter around",
"a flower to lay dormant"
] | A | an organism requires energy for repair |
OpenBookQA | OpenBookQA-2227 | Shanonhaliwell April 8th, 2018 03:31 PM
Quote:
Originally Posted by romsek (Post 591335) outstanding, you seem to be getting the hang of things.
Thanks to you, I was able to do it.
All times are GMT -8. The time now is 12:30 AM.
The following is multiple choice question (with options) to answer.
Every 1440 minutes | [
"the moon is full",
"there's a lunar eclipse",
"a new year starts",
"the sun sets in the west"
] | D | the sun setting occurs once per day |
OpenBookQA | OpenBookQA-2228 | zoology, species-identification, ornithology, behaviour
Title: What is this crow eating, and is it a common part of the corvid diet? Here's a picture (by Rob Curtis) of a crow carrying and eating the corpse of what looks a bit like a small hawk or falcon:
Other pictures clearly show the crow is eating the dead bird. ... | [
"deer",
"elephant",
"worm",
"lion"
] | D | In the food chain process an animal has the role of consumer which eats other animals for food |
OpenBookQA | OpenBookQA-2229 | acoustics
Title: Amplified Sound in another room I was sitting in my room with my door open, because I have a cooler in my room that has a lot of noise when turned on. I was watching a video on my phone, but because of the noise from the cooler, I couldnt hear it and I had to increase the volume. However, my brother c... | [
"a bird chirping away",
"a dog barking loudly",
"a car engine rev",
"a shout repeating softer"
] | D | when a sound is produced inside of a room , there is sometimes an echo after the sound |
OpenBookQA | OpenBookQA-2230 | optics, water, evaporation, gas
Title: How are water vapors not visible? This site says that water vapor isn't visible.
However, take a look at this picture:
Isn't that water vapor? Water vapour is a clear and colourless gas, so it can't be seen by the naked eye.
What you see in the photo in your second link is (pa... | [
"aerial clouds",
"snow",
"cigarette clouds",
"ice"
] | A | water vapor is found in the atmosphere |
OpenBookQA | OpenBookQA-2231 | fluid-dynamics
Title: Feeling the Breeze This question is based on an odd phenomenon I noticed last week. Since then, I've been collecting more data to try to get an accurate picture of the facts.
Each morning, I go to my bus stop. It's on a main road, and when I get there, there is a lot of traffic. Every couple minu... | [
"break the car's speed",
"stall the car's speed",
"slow the car's speed",
"heighten the car's speed"
] | D | a force continually acting on an object in the same direction that the object is moving can cause that object 's speed to increase in a forward motion |
OpenBookQA | OpenBookQA-2232 | human-anatomy
Taken from here such people would be able to dislocate then get their hands in front and relocate.
The body can be trained to be quite flexible through training like gymnastics etc...
The following is multiple choice question (with options) to answer.
If a person has a respiratory system then they are a... | [
"time of day",
"all warmth",
"the paint color",
"breathable gas"
] | D | the respiratory system takes in oxygen from the air |
OpenBookQA | OpenBookQA-2233 | evolution, zoology
Let's say the environmental challenge for two different kinds of carnivore (let's call them Bogs and Dats) is to catch Mophers. Both Bogs and Dats initially have the same medium-to-short muzzles. Some Bog individuals figure out that they can dig Mophers out of their burrows, and some Dat individu... | [
"the happier voles in an area",
"the bigger voles in the area",
"fewer voles in that area",
"more voles in the area"
] | C | if a new predator begins eating prey then the population of that prey will decrease |
OpenBookQA | OpenBookQA-2234 | everyday-life
Title: Strange pattern on car windows
A couple of days ago I was in a friend's car, and I noticed this pattern on the windows; I took a picture of the sun through the window to make it clearly visible.
The night before had been quite cold, but I don't think that the temperature went below $0$ °C, even ... | [
"evaporate",
"burn",
"flood",
"break up"
] | D | mechanical weathering is when rocks are broken down by mechanical means |
OpenBookQA | OpenBookQA-2235 | human-biology
Title: Why do we sweat after drinking water and running? Why do we sweat after running?
Also we sweat sometime after drinking lots of water. Why it is so?
Can someone please enlighten me in this regard? Exercise, such as running, increases muscle activity. This increases the energy demand of these ... | [
"when sleeping peacefully at night",
"when on a long jog in sweltering weather",
"when sitting in a recliner in an air conditioned house",
"when sitting on the front porch on a breezy day"
] | B | when the body is hot , sweat is produced to cool the body |
OpenBookQA | OpenBookQA-2236 | species-identification, marine-biology
Title: help identify this fish
I came across this washed up fish in Panama City, Florida in November 2015. I'm guessing it's a puffer fish but I can't find anything like it online.
Thanks. This is a kind of trunkfish. (They have different names, this could be a smooth or spotte... | [
"mountainous",
"arid",
"salty",
"dry"
] | C | a sea turtle lives in the ocean |
OpenBookQA | OpenBookQA-2237 | astronomy, everyday-life, popular-science, climate-science
Title: Why is the summer, in the temperate latitudes, in average, hotter that the spring? It is common knowledge that the transition from the Spring to the Summer season occurs in the Summer Solstice when the "Sun reaches its highest excursion relative to the ... | [
"a lumber company got resources from the forest",
"the sun is a lot brighter than the year before",
"A piece of the sun has been placed on the forest floor",
"mirrors have been placed in the tree tops by squirrels"
] | A | cutting down trees in a forest causes the number of trees to decrease in that forest |
OpenBookQA | OpenBookQA-2238 | electrical-engineering, ethics, sales, safety
But all of those steps are going way above and beyond what you're obligated to do in this particular case. This is especially so when there is a safe usage for the product along with an unsafe approach. And any of those actions are likely to irreparably damage your relat... | [
"burning shoes",
"recycling",
"filtering water",
"burning sticks"
] | A | humans discarding waste in an environment causes harm to that environment |
OpenBookQA | OpenBookQA-2239 | charge, electric-current, flow
http://amasci.com/miscon/eleca.html#cflow
Energy, however, is not transmitted by one electron moving all the way around the circuit to the load, but rather through waves in the electrons and more importantly, the associated electric field. It's the same way that mechanical energy is tran... | [
"reaching forward",
"looking at it",
"swiping left",
"hooking it up"
] | D | when an electrical conductor is plugged into an outlet , a circuit is completed |
OpenBookQA | OpenBookQA-2240 | Kudos [?]: 4 [2] , given: 0
Re: Good set of PS 2 [#permalink] 19 Oct 2009, 08:02
2
KUDOS
Bunuel wrote:
4. A contractor estimated that his 10-man crew could complete the construction in 110 days if there was no rain. (Assume the crew does not work on any rainy day and rain is the only factor that can deter the crew f... | [
"at the middle of a mountain",
"inside of the mountain",
"at the base of a mountain",
"at the top of a mountain"
] | C | as elevation of a place decreases , how much a flood will affect that place will increases |
OpenBookQA | OpenBookQA-2241 | meteor
Title: Trying to identify something I saw in the sky I'm trying to identify something I saw in the sky. This occurred in central Virginia (Louisa county), US on Sunday at around 2:15 AM EST. It started as a ring of what looked like smoke, high in the sky. The ring got gradually larger. Then a small light moved ... | [
"a paper bag",
"a baby",
"a stick",
"on the gales"
] | D | air is a vehicle for sound |
OpenBookQA | OpenBookQA-2242 | metabolism, nutrition, digestive-system
Title: Do I have to chew for digestion to kick in? Liquid nutrient-rich products (such as Soylent) are consumed without chewing. But if I have to chew to initiate digestion, are those nutrients really "processed"? If you had to chew to digest, then beverages like sugary sodas wo... | [
"metal",
"water",
"hush puppies",
"pain"
] | C | digestion is when stomach acid breaks down food |
OpenBookQA | OpenBookQA-2243 | star, night-sky
Title: What is this rapidly twinkling red, blue, and white star I saw? Last night, I was on my balcony at 1AM (PST) and I looked up and saw two stars near the horizon (I'd guess ~30 degrees above the horizon), and they were "twinkling" about twice as fast as other stars higher in the sky, and I could c... | [
"distant",
"close",
"touchable",
"near"
] | A | the stars in the night sky are very far away from the Earth |
OpenBookQA | OpenBookQA-2244 | material-science
Title: Optimal material for a hammer head I was watching a TV show in which a gold hammer was mentioned. It was not serious but caused me to wonder whether gold would be a good material and, if not, what else might be. An attraction of gold is that it has a high density but that advantage is probabl... | [
"plastic jewels",
"cheese",
"real jewels",
"chalk"
] | C | measuring the hardness of minerals requires scratching those materials |
OpenBookQA | OpenBookQA-2245 | food, nutrition, energy-metabolism
Title: What are the bare minimum nutrients required to survive as a human? I am trying to determine the bare minimum nutritional requirements to survive as a human, ignoring energy (caloric) requirements. Another way to ask this question is: What elements can humans not live without?... | [
"a used popcorn bucket",
"an empty can of corn",
"a dead strawberry bush",
"a pickled jicama root"
] | D | nutrients are a source of energy for living things |
OpenBookQA | OpenBookQA-2246 | evolution, ornithology, ethology, sexual-selection
Bateson P. 1978. Sexual imprinting and optimal outbreeding. Nature 273, 659 - 660.
Bereczkei T, Gyuris P, Weisfeld GE. 2004. Sexual imprinting in human mate choice. Proceedings of the Royal Society of London, Series B: Biological Sciences 271: 1129–1134.
Immelmann K... | [
"broods",
"snacks",
"teeth",
"burrows"
] | A | reproduction produces offspring |
OpenBookQA | OpenBookQA-2247 | optics, geometric-optics
EDIT:::Clarifications
This question is the result of a debate with my friend, who says the room would be dark and me who says otherwise.
Now being said that let's move to specifics...let's assume that the room is a cuboid and the light source is say a light bulb i.e. an isotropic source like a... | [
"pull a cart",
"dump a can",
"flick a window",
"adjust a switch"
] | D | a switch is used to stop the flow of current in an electrical circuit |
OpenBookQA | OpenBookQA-2248 | javascript, algorithm, machine-learning
Title: Reinforcement Learning for Flappy Bird in JavaScript To give a bit of a background, I'm organizing a small session about reinforcement-learning, specifically Q-learning, to a group of high school students in the following month to give them a glance into the kind of oppor... | [
"thinking",
"cooking",
"hearing",
"breathing"
] | B | animals learn some behaviors from watching their parents |
OpenBookQA | OpenBookQA-2249 | ecology, population-dynamics, ecosystem, antipredator-adaptation, predation
I would also like to talk about other things that might be of interest in your model (two of them need you to allow evolutionary processes in your model):
1) lineage selection: predators that eat too much end up disappearing because they cause... | [
"cuddling with it",
"hungry for it",
"consuming it",
"fearful of it"
] | D | omnivores are predators |
OpenBookQA | OpenBookQA-2250 | bacteriology, food, hematology, toxicology, parasitology
Title: Blood consumption Is consumption of blood more "dangerous" compared to meat?
There was a news-article about unnatural chemicals found in the blood of mothers. This reminded me about a question I have pondered upon from time to time. Now, I am not a vampir... | [
"a naval mine",
"a short drizzle",
"eating a meal",
"a light breeze"
] | A | explosions can cause harm to an organism |
OpenBookQA | OpenBookQA-2251 | civil-engineering, water-resources
Title: Are detention ponds always dug? When creating a detention pond I have only came across examples where the pond is created by digging. Is it possible that a pond is created by creating retaining walls / embankments? and if it is can you please provide examples.
Please note! thi... | [
"dry",
"grow",
"drain",
"shrink"
] | B | as the amount of water in a body of water increases , the water levels will increase |
OpenBookQA | OpenBookQA-2252 | homework, reproduction, allele
Title: Albinism inheritance problem: what are the father's alleles if he got an albino kid?
Albinism is caused by a recessive gen "c". A normal man marries an
albino woman. The first son happened to be albino. What are the
possible phenotypes of the parents? What is the chance that ... | [
"If a plant produces gymnosperms",
"If someone has blue contacts in their eyes",
"If a child can build tall walls",
"If a plant receives enough sunlight"
] | A | the type of seed of a plant is an inherited characteristic |
OpenBookQA | OpenBookQA-2253 | zoology
Capybara, rabbits, hamsters and other related species do not have a complex ruminant digestive system. Instead they extract more nutrition from grass by giving their food a second pass through the gut. Soft fecal pellets of partially digested food are excreted and generally consumed immediately. Consuming thes... | [
"a lion",
"a cow",
"a wolf",
"a preying mantis"
] | B | rabbits eat plants |
OpenBookQA | OpenBookQA-2254 | geology, volcanology, mineralogy, minerals
Title: Where can obsidian be found? Where is obsidian found?
Is it typically found on the surface or underground?
If underground, how far under (meters or feet would be perfect)?
Also, is it found everywhere on Earth, or just in areas where volcanic activity is (or was recen... | [
"a soft song",
"a frontal lobe",
"a small indent",
"a movement happening"
] | D | lava is found above the ground |
OpenBookQA | OpenBookQA-2255 | zoology, ornithology, ethology, behaviour
Title: Crow branch pecking behaviour I was walking through a small park when two crows started cawing at me, and followed me, flying from tree-to-tree as I walked. I speculate that this is a territorial or protective behaviour, but what I found different was the crows were vio... | [
"geese leave colder regions",
"a human boy learns to speak French",
"a chicken learns to play fetch",
"an eagle eats trash"
] | A | migration is an instinctive behavior |
OpenBookQA | OpenBookQA-2256 | evolution, zoology
Let's say the environmental challenge for two different kinds of carnivore (let's call them Bogs and Dats) is to catch Mophers. Both Bogs and Dats initially have the same medium-to-short muzzles. Some Bog individuals figure out that they can dig Mophers out of their burrows, and some Dat individu... | [
"long sleeves",
"harsh precipitation",
"silly anecdotes",
"boring movies"
] | B | changes in an environment cause animals to adapt to survive |
OpenBookQA | OpenBookQA-2257 | meteorology, climate-change, gas, pollution
Title: Regarding various types of atmospheric pollution Does all the car pollution (from about 150 million cars at least in the U.S. and a lot more in all of North America and the rest of the world) all the smoke-stack pollution of various factories and all the Airline pollu... | [
"bicycling",
"skiiing",
"driving",
"walking"
] | C | using a car causes pollution |
OpenBookQA | OpenBookQA-2258 | quantum-mechanics, electromagnetism
Title: Can you magnetize iron with a hammer? We know that a piece of ferromagnet, such as iron, can be magnetized by putting in a strong magnetic field to get domains parallel to the field grow.
I also remember from pop. culture and MacGyver old tv series that you can magnetize a p... | [
"allure",
"corrosion",
"irritation",
"evasion"
] | A | iron nails are made of iron |
OpenBookQA | OpenBookQA-2259 | career
Title: Data science career problems: interaction of technical and social difficulties I have been trying to break into the bioinformatics space (and now, data science more generally).
Although there are numerous challenges in this field and I am constantly learning to deal with them, I have have found the most ... | [
"astronaut",
"lumberjack",
"fisherman",
"miner"
] | A | molecules vibrating can cause sound |
OpenBookQA | OpenBookQA-2260 | ichthyology, vertebrates
Title: If an organism is supported only by cartilage, does it have an endoskeleton? Lamprey and sharks lack bones, but does this mean they are not classified as having an endoskelton? Does an organism need bone to be considered as having an endoskeleton? From wikipedia
An endoskeleton (From ... | [
"the gums",
"the femur",
"the skin",
"the lemur"
] | B | skeletal system is made of bones |
OpenBookQA | OpenBookQA-2261 | zoology, ethology, behaviour, psychology, death
I can't prove it to you, but I know that my Beagle had a rich emotional life. I know this because I spent huge amounts of time with him. He was a close friend of mine. I would just as soon question whether my wife has real emotions as my dog. I can't prove that my wife's... | [
"scared",
"inherited",
"rare",
"learned"
] | D | preferences are generally learned characteristics |
OpenBookQA | OpenBookQA-2262 | radiation
You see similar things happening here. The metal rod at the top of the lamp acts as a capacitive ground - given the very high voltage, a tiny charge will flow from the tip of the filament to the rod. There is a small amount of gas in the tube which is ionized and gives rise to the light you see. The electron... | [
"electrify",
"crowd",
"hollow out",
"precipitate"
] | A | sending electricity through a conductor causes electricity to flow through that conductor |
OpenBookQA | OpenBookQA-2263 | evolution, mammals
Title: Why haven't land animals evolved beyond urination? It occurred to me (while urinating) that this would seem to be selected against because water is a scarce resource. Why are we constantly losing water we don't need to through urination? What is it about the chemistry of urine and the was... | [
"birds",
"dirt",
"soil",
"rocks"
] | A | living things require water for survival |
OpenBookQA | OpenBookQA-2264 | combustion
Title: Why are fires smokey? Combustion, in chemical terms, is a reaction with a certain molecule and oxygen, and it produces, energy, $\ce{CO2}$, and $\ce{H2O}$ (That's how I learned it at least). So what makes a fire'smokey'? I had always thought that smoke was simply $\ce{CO2}$, but read that it was actu... | [
"a careless bird",
"a smoking bear",
"electricity",
"a campfire"
] | C | lightning can cause a forest fire |
OpenBookQA | OpenBookQA-2265 | human-biology, mammals, lifespan, dogs, rodents
Gigantism:
Whilst the life expectancy for a species may be higher in general people with gigantism may live shorter lives than possible because of non-metabolic related reasons. For example many forms of gigantism are linked to hormones which promote cell division and g... | [
"float",
"sneeze",
"fornicate",
"sing"
] | C | reproduction occurs during adulthood |
OpenBookQA | OpenBookQA-2266 | homework-and-exercises
Title: Is geothermal energy ultimately derived from solar energy? The following question is taken from 10th class science NCERT book chapter 14th.
Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun’s energy?
(a) geot... | [
"electrocutes birds",
"starves babies",
"freezes water",
"sustains mammals"
] | D | the sun is the source of solar energy called sunlight |
OpenBookQA | OpenBookQA-2267 | algorithms, graphs, optimization
There is one final component of your problem we have not addressed, i.e., there is a set of books $S_1$ that MUST go into box 1 and a set $S_2$ that MUST go into box 2.
Off the top of my head, I do not see a way to fix this without incorporating a source and sink $s$ and $t$ (for box... | [
"leave it at the dump",
"use it for new purposes",
"throw it in the trash",
"burn it in a fire"
] | B | An example of avoiding waste is using a material more than once |
OpenBookQA | OpenBookQA-2268 | Transcript
TimeTranscript
00:00 - 00:59so this is the question 1 ka manufacture compile data that the indicated mileage decrease in the number of the miles between driven between recommended serving increased the manufacturer use the equation Y is equal to minus one upon 200 X + 35 to model the data based on the infor... | [
"the same amount of gas",
"various amounts of gas",
"more gas than before",
"less gas than before"
] | D | as mileage per galon of gasoline increases , the amount of gasoline used will decrease |
OpenBookQA | OpenBookQA-2269 | c, game, console, minesweeper
// fill the mask
for(int y = 0; y < height; y++) {
for(int x = 0; x < width; x++) {
mask[y][x] = !EMPTY;
}
}
#ifndef DEBUG
for(int y = 1; y < height-1; y++) {
for(int x = 1; x < width-1; x++) {
mask[y][x] = EMPTY;
}
... | [
"ceramic stones",
"iron pebbles",
"glass beads",
"plastic beads"
] | B | iron is always magnetic |
OpenBookQA | OpenBookQA-2270 | Note: Before you can calculate how many plants will be required to fill a given area you'll need to first determine the total square feet of the planting bed. Many online calculators use this formula: $$Total\,number\,of\,plants = {Area\,of\,garden \over Plant\,spacing^2}$$. Image Credit: Getty Images Calculating even ... | [
"financing",
"nutriment",
"grain",
"solar wind"
] | B | a seed is used for storing food for a new plant |
OpenBookQA | OpenBookQA-2271 | reaction-mechanism, safety
Title: What are the consequences of mixing Ferric Chloride Solution, distilled vinegar, baking soda and water? I was attempting to etch and blade with a ferric chloride solution. I did not have enough so I filled a glass with vinegar and water (3 parts vinegar to 1 part water) then added 2 o... | [
"Mixing play-doh",
"Making cereal",
"A dog's saliva",
"Science fair volcanoes"
] | D | baking soda can react chemically with vinegar |
OpenBookQA | OpenBookQA-2272 | metals
Title: Why does carbon alloy with iron specifically? Everyone knows what an alloy is: it's a metal made by melting two (or more) other metals together.
Unless of course you're talking about steel. That's a metal made by mixing carbon (very much not a metal) into molten iron. But you never hear about carbon al... | [
"steel clogs",
"gold cats",
"bronze shoes",
"Fe armor"
] | D | ferrous metals contain iron |
OpenBookQA | OpenBookQA-2273 | javascript, performance, datetime, node.js, matrix
Title: Net health monitoring This is a little net health monitoring project I made in NodeJS. It pings Google every second and stores the result (true/false) along with the date in a database (MongoDB). I've collected enough data and I want to represent it for the pas... | [
"accumulate it",
"ignore it",
"lose it",
"forget it"
] | A | An example of collecting data is measuring |
OpenBookQA | OpenBookQA-2274 | because the balloon is a sphere, we know. Imagine that you are blowing up a spherical balloon at the rate of. Formulas for Model Hot Air Balloon Lift: Gross lift is the weight of the ambient air minus the weight of the heated air. The volume of a sphere with radius r is (4/3)πr^3 and the surface area is 4πr^3. 11" roun... | [
"a salt shaker",
"several cups",
"live bees",
"organ processed gas"
] | D | a beach ball contains gas |
OpenBookQA | OpenBookQA-2275 | organic-chemistry, reaction-mechanism, alcohols
The primary carbon will not, as stated above, form a primary carbocation since it is too unstable. Hence only the bimolecular substitution will occur. If no primary carbocation is generated, no Wagner-Meerwein rearrangement can occur. And the mechanism of an $\mathrm{S_N... | [
"a piece of paper in marbles",
"a piece of meat submerged in lemon juice",
"a blade of grass in sand",
"a piece of cotton in water"
] | B | An example of a chemical change is acid breaking down substances |
OpenBookQA | OpenBookQA-2276 | entomology
Title: What is the name of this tiny creature? It looks like a tiny piece of moving cotton? By chance, I saw this tiny insect on my bag a few days ago in Sydney. Am I the first person who has pinpointed this animal?! If not can you please let me know its name? From your image, it looks like it might be a wo... | [
"birds",
"tuna",
"knives",
"carnations"
] | D | bees eat pollen |
OpenBookQA | OpenBookQA-2277 | fusion, renewable-energy
An energy "breakthrough" would be a loaded development. We already use lots of energy, and if we found it economic to use more we probably would. The last breakthrough shift in our ability to exploit energy resources rocketed the entire planet into a new geological era, the Anthropocene. We... | [
"petrol",
"coal",
"trees",
"steam"
] | A | fossil fuels are a nonrenewable resource |
OpenBookQA | OpenBookQA-2278 | meteorology, snow, radar
Also note that winter precipitation adds an extra complication because the particles are lighter in weight and can thus be blown about more by vertical and horizontal winds. Raindrops (and hail) are quite likely to fall unless extreme updrafts exist because they are heavy. But drizzle, snow,... | [
"will be dry",
"will be burning",
"will be slick",
"will be toasty"
] | C | sleet is made of ice |
OpenBookQA | OpenBookQA-2279 | thermodynamics, heat-engine
You have your flame power the $`` {\small{\begin{array}{c} \textbf{Hot Water} \\[-25px] \textbf{/ Steam} \end{array}}} "$ stream. This step is how we input the excessive driving force that comes from the flame's unnecessarily high temperature.
You hook up some random waste heat source to t... | [
"velvet socks",
"fish food",
"dish water",
"cupcake batter"
] | D | if food is cooked then heat energy is added to that food |
OpenBookQA | OpenBookQA-2280 | species-identification, botany
Title: Can you identify this (possibly waterstoring) plant? My son brought home a sapling, and after 4 years in a pot it is now about 30 cm or a foot high (from the "ground" to the top of the "stem"). It doesn't need a lot of water and can go weeks without being watered, in fact it seems... | [
"filtering liquid nicotine",
"adjusting water content",
"evaporating oils",
"flavoring leaves"
] | B | plants control the amount of water in their leaves through transpiration |
OpenBookQA | OpenBookQA-2281 | newtonian-mechanics, estimation
Would the rock have created a seismic event of its own (if so, how large)?
Would the rock have created a crater? The energy of the rock at the time of hitting the earth is mgh.
No rock we know of is going to be able to survive this collision with out breaking into pieces.
Non the less i... | [
"a still",
"a group",
"a range",
"a pond"
] | C | mountains are formed by plate tectonics |
OpenBookQA | OpenBookQA-2282 | botany, plant-physiology, plant-anatomy
*No others are known, but could definitely exist.
Bibliography
Crafts, A. S. “Phloem Anatomy, Exudation, and Transport of Organic Nutrients in Cucurbits.” Plant Physiology 7, no. 2 (1932): 183–225.
Fischer, A. “Das Siebröhrensystem von Cucurbita.” Berichte Deutsche Botanische G... | [
"a shark",
"a panda",
"a bamboo stalk",
"a human"
] | C | a plant stem contains a system of tubes for transporting water and nutrients to other parts of the plant |
OpenBookQA | OpenBookQA-2283 | climate-change, geography, rivers, rainfall, agriculture
Today Climate change and its consequences are some of the biggest challenges facing Humanity, with water scarcity being the big factor in Sub-Sahara Africa.
By Ultimately raising the Rainfall in the entire Southern Africa, through the managed and controlled fill... | [
"a hydrogen explosion",
"a boosted ecosystem",
"a crying child",
"an extreme drought"
] | B | as the number of sources of food increase in an environment , the population of the organisms will increase in that environment |
OpenBookQA | OpenBookQA-2284 | sun, vision, biology, eclipse, laboratory-safety
Title: Why aren't 100% UV blocked sunglasses safe to view an eclipse with? I am not planning on staring into the sun during an eclipse or any other time.
I have been reading about how no variety of regular sunglasses are safe enough to view the eclipse with. I'm not tal... | [
"a stray cat",
"an acidic spray",
"a chainsaw",
"your thumb"
] | B | chemical splashing can cause harm to the eyes |
OpenBookQA | OpenBookQA-2285 | optics, visible-light, reflection, refraction
As apparently we are able to see blue and weak, but clear violet stripe in the rainbow, my understanding is wrong. So why don't we get red, yellow, green and blue light in it as well? Why do we see spectrum as if we were using prism, not the "cumulative spectrum"? With the... | [
"snow",
"root beer",
"coal",
"the night sky"
] | A | if an object reflects more light then that object is more easily seen |
OpenBookQA | OpenBookQA-2286 | zoology, microbiology, pathology
Title: Prevention of disease spreading in animal kingdom It's my first question on here, so I'm not sure If my question fits the theme. Please refer me to the appropriate one, If I have made a mistake.
So a question that I wanted to ask has to do with whether or not animals potentially... | [
"nesting right beside predators",
"standing out in the sun",
"standing out from the environment",
"appearing the same as surroundings"
] | D | camouflage is a kind of protection against consumers |
OpenBookQA | OpenBookQA-2287 | machine-learning, neural-network, reinforcement-learning, q-learning
This average expected reward is not really the value function $V$ we are interested in estimating. Our target $V$ should tell us the best expected reward for each position, after all. Interestingly, though, when your policy is already optimal then yo... | [
"birds building nests",
"cats making hairballs",
"dolphins' echolocation",
"dogs playing fetch"
] | D | if an animal is trained to do something then that something is a learned behavior |
OpenBookQA | OpenBookQA-2288 | species-identification
Title: What species is this worm? I was at the park lying on the grass and its the third time I have seen them, I used to think they were parasites when I was like 7. It is the very small brown worm on the green leaf. It moves by squiggling. It comes in different colors but same size.
http://pos... | [
"a living tree",
"a healthy human",
"a dead lizard",
"a living rat"
] | C | dead organisms decay |
OpenBookQA | OpenBookQA-2289 | geology
Title: Where do riverbed stones come from? Have they always been here since the river was formed? Are some newer than others? Riverbed 'stones' - I assume you mean things like pebbles, boulders, etc. are pieces of rock that have weathered out and been deposited in the river. Some come from rock that is very... | [
"jungle brush",
"enormous boulders",
"tiny grains",
"tall trees"
] | C | wind causes erosion |
OpenBookQA | OpenBookQA-2290 | geophysics, sedimentology
Title: Does dirt compact itself over time? If so, how does this happen? If I were to bury something 10 feet (~3 metres) underground, with loose soil on top, would the ground naturally compact itself over time, until whatever I had buried has dirt tightly pressing against it on all sides?
What... | [
"shrunk",
"sprouted",
"burned",
"flown"
] | B | seeds may sprout when buried in soil |
OpenBookQA | OpenBookQA-2291 | humidity, air-pollution
Title: Does usual city pollution have effects on relative humidity? I've noticed that in a rural area with low pollution the relative humidity is constantly lower than the humidity in a high polluted city. Is there any correlation between pollution and humidity? By way of reference, "humidity ... | [
"cars",
"oceans",
"glaciers",
"storms"
] | A | pollution is a source of pollutants |
OpenBookQA | OpenBookQA-2292 | waves, atmospheric-science, turbulence
The clouds form if the rising air reaches the lifted condensation level before the updrafts are stopped by an inversion or stable layer. The air is (relatively) clear above the downdrafts. If the convection rolls were perfectly circular, the cloud row spacing would be twice the ... | [
"making beer",
"distilling liquor",
"driving a car",
"baking bread"
] | B | water vapor condensing in clouds causes rain |
OpenBookQA | OpenBookQA-2293 | behaviour
Title: What happens to silverfish when we throw them out the window? I'll find a silverfish from time to time in my flat. I don't mind them but usually I catch them and throw them off the balcony (second story) into the bushes and lawn below.
I was wondering, since they seem to live in the water conduits in ... | [
"sears",
"cools",
"warms",
"burns"
] | B | migration is when animals move themselves from a cooler climate to a warmer climate for the winter |
OpenBookQA | OpenBookQA-2294 | 2) Let $X$ be the largest possible set satisfying the question, supposing it exists. Is there a simple way to calculate its boundary, $\partial X$?
3) What is the volume of the largest possible set in question in terms of $A_i$? It's worth noting that, if $A_1, A_2, A_3$ are measurable subsets of $I^2$, then there is ... | [
"the Sun",
"Venus",
"the moon",
"the Earth"
] | A | the volume of an object can be used to describe the size of that object |
OpenBookQA | OpenBookQA-2295 | thermodynamics, geophysics
With supercooled water, this effect is even more pronounced - a water at -30 °C has about the same density as water at 60 °C.
Oceans cool mostly by evaporation - the surface layers of water "spontaneously" changing state from liquid to gaseous. You get a balancing act between energy lost to ... | [
"dry planet",
"wet planet",
"solar planet",
"ice planet"
] | B | oceans contains most of earth 's water |
OpenBookQA | OpenBookQA-2296 | 5,224 views
In a certain town, the probability that it will rain in the afternoon is known to be $0.6$. Moreover, meteorological data indicates that if the temperature at noon is less than or equal to $25°C$, the probability that it will rain in the afternoon is $0.4$. The temperature at noon is equally likely to be a... | [
"in the state of New Mexico",
"at a seaside resort",
"at a cabin in the desert",
"on one's wedding day"
] | B | as air pressure decreases , the chance of rain will increase |
OpenBookQA | OpenBookQA-2297 | special-relativity, spacetime, coordinate-systems, inertial-frames, geometry
Title: The effects of Lorentz transformation on shape Imagine a solid 3D cube. Now imagine that this cube is traveling close to the speed of light. To what degree will the spatial geometric properties of this object (or in general of any 3D o... | [
"spinning liquid mercury",
"blowing on gases",
"ripping paper",
"cutting water"
] | C | tearing an object changes that object 's shape |
OpenBookQA | OpenBookQA-2298 | electromagnetism
Title: Region of most and least intense magnetic field
It's a unmagnetized iron screw placed in the north pole of a U shaped magnet. I believe the region of least intense magnetic field is at the far left of the board. From what I understand the screw becomes magnetized and it's south pole is where i... | [
"at the gym",
"at the pool",
"at car junkyards",
"at middle school"
] | C | electromagnets can be powered by electricity |
OpenBookQA | OpenBookQA-2299 | thermodynamics, solid-state-physics, electric-current, conductors, metals
Title: Why is the heat flow in metals slower than the current flow? When we apply a voltage across a metallic conductor, the current starts to flow almost instantaneously. But when a temperature difference is established across the same conducto... | [
"a metal fork",
"a pencil eraser",
"a paper clip",
"aluminum foil"
] | B | an electrical insulator slows the flow of electricity |
OpenBookQA | OpenBookQA-2300 | thermodynamics, everyday-life
Title: Why do fruits left to dry in the sun feel so much warmer to the touch than other objects outside? I have been putting preserved plums, on a rack, to sun and dry on my balcony. When I take them in at dusk, the plums are noticeably hot to the touch. They feel warmer than the bamboo a... | [
"embers",
"flowers",
"rain",
"ice"
] | A | a hot something is a source of heat |
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