Problem: OPTIONS:
- pion
- dark matter
- molecules
- quarks
Q: Answer the following question given this paragraph: symbols are the values for antiquarks. B is baryon number, S is strangeness, c is charm, b is bottomness, t is topness. Values are approximate, are not directly observable, and vary with model. Q: Strangeness, charm, bottomness, and topness are properties of what subatomic particle? A:
Answer: quarks

Problem:OPTIONS:
- methane
- carbon monoxide
- phosphorous
- water vapor

Answer the following question given this paragraph: The combustion of propane gas produces carbon dioxide and water vapor. Q: The combustion of propane gas produces carbon dioxide and what else? A:
****
A: water vapor

Answer the following question given this paragraph: To measure very small masses, scientists use electronic balances, like the one in the Figure below . This type of balance also makes it easier to make accurate measurements because mass is shown as a digital readout. In the picture, the balance is being used to measure the mass of a white powder on a plastic weighing tray. The mass of the tray alone would have to be measured first and then subtracted from the mass of the tray and powder together. The difference between the two masses is the mass of the powder alone. Q: What instrument, with a digital readout, is used by scientists to measure very small masses? A:
OPTIONS:
- mixed balance
- mechanical balance
- common balance
- electronic balance
electronic balance

Answer the following question given this paragraph: Radio waves are used for communicating with spacecraft. A round-trip communication from Earth to Mars takes anywhere from 6 to 42 minutes. What challenges might this present for sending unmanned spacecraft and probes to Mars?. Q: How is communication initiated and maintained with spacecraft? A:
OPTIONS:
- sonar
- telegraph
- wi-fi
- radio waves

Answer: radio waves

Question: Answer the following question given this paragraph: All chemical reactions, even exothermic reactions, need a certain amount of energy to get started. This energy is called activation energy . For example, activation energy is needed to start a car. Turning the key causes a spark that activates the burning of gasoline in the engine. The combustion of gas won't occur without the spark of energy to begin the reaction. Q: The energy a chemical reaction needs to get started is called what kind of energy? A:
OPTIONS:
- function
- conduction
- fusion
- activation
Answer: activation

input: OPTIONS:
- enzymes
- axons
- receptors
- neurotransmitters Now, answer this question: Answer the following question given this paragraph: The transmission of nerve impulses between neurons is like the passing of a baton between runners in a relay race. After the first runner races, she passes the baton to the second runner. Then the second runner takes over. Instead of a baton, a neuron passes neurotransmitters to the next neuron. Q: Like a runner passing a baton, the transmission of nerve impulses between neurons depends on what? A:
A:
output:
neurotransmitters