Problem: I read this background article the other day: Unfortunately, the layer of good ozone is being destroyed by air pollution. The chief culprits are chlorine and bromine gases. They are released in aerosol sprays, coolants, and other products. Loss of ozone has created an ozone hole over Antarctica. Ozone depletion results in higher levels of UV radiation reaching Earth. In humans, this increases skin cancers and eye cataracts. It also disturbs the nitrogen cycle, kills plankton, and disrupts ocean food webs. The total loss of the ozone layer would be devastating to most life. It's rate of loss has slowed with restrictions on pollutants, but it is still at risk. I am facing a new situation today: Two neighboring planets identical to Earth in size and atmospheric conditions behaved differently towards their environments. Planet A emitted a lot of air pollution, destroying its ozone layer, while Planet B respected the environment and used ecological products. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which planet used more coolants?

A: Planet A
Problem: Given the question: I read this background article the other day: Electrons can be removed from some objects using friction, simply by rubbing one substance against another substance. There are many examples of objects becoming charged by friction, including a rubber comb through hair, and a balloon on a sweater. In both these instances, the electrons move from the second object to the first, causing the first object to become negatively charged and the second one positively charged. Friction between the tires on a moving car and the road cause the tires to become charged, and wind causes friction between clouds and air which causes clouds to become charged and can result in tremendous bolts of lightning. I am facing a new situation today: Two cities, Appleton and Orangeburg, are approximately 100 miles apart and are currently experiencing different weather. Appleton is windy and cloudy, but Orangeburg has very calm air but is also cloudy. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which city has clouds with less electrons?
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The answer is:
Orangeburg
input question: I read this background article the other day: Fish reproduce sexually. They lay eggs that can be fertilized either inside or outside of the body. In most fish, the eggs develop outside of the mother's body. In the majority of these species, fertilization also takes place outside the mother's body. The male and female fish release their gametes into the surrounding water, where fertilization occurs. Female fish release very high numbers of eggs to increase the chances of fertilization. I am facing a new situation today: Tim and Dan both studied reproduction in college. Dan studied plant reproduction while Tim studied fish reproduction. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which person studied more about the ways female fish release very high numbers of eggs????
output answer: Tim
I read this background article the other day: Predators play an important role in an ecosystem. For example, if they did not exist, then a single species could become dominant over others. Grazers on a grassland keep grass from growing out of control. Predators can be keystone species . These are species that can have a large effect on the balance of organisms in an ecosystem. For example, if all of the wolves are removed from a population, then the population of deer or rabbits may increase. If there are too many deer, then they may decrease the amount of plants or grasses in the ecosystem. Decreased levels of producers may then have a detrimental effect on the whole ecosystem. In this example, the wolves would be a keystone species. I am facing a new situation today: Mike is studying the predator prey relationship. He is specifically studying three species, species A, species B, and species C. Species A is a predator; species B is the prey; and species C is a plant species that species B lives on. Mike now needs to figure out how the predator prey relationship balance the ecosystem. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: If species B population decrease, would species C population increase or decrease?
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Answer: increase
Q: I read this background article the other day: The jejunum is the second part of the small intestine, where most nutrients are absorbed into the blood. As shown in Figure below , the mucous membrane lining the jejunum is covered with millions of microscopic, fingerlike projections called villi (singular, villus). Villi contain many capillaries, and nutrients pass from the villi into the bloodstream through the capillaries. Because there are so many villi, they greatly increase the surface area for absorption. In fact, they make the inner surface of the small intestine as large as a tennis court! I am facing a new situation today: Paul and Dirk were studying the human digestive system. paul studied more about the stomach, while Dirk studied more about the jejunum. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which student read less about villi?
A: Paul
[Q]: I read this background article the other day: Rain dissolves fertilizer in the soil. Runoff carries it away. The fertilizer ends up in bodies of water, from ponds to oceans. Nitrogen is a fertilizer in the water. Since there is a lot of nitrogen, it causes algae to grow out of control. Pictured below is a pond covered with algae ( Figure below ). Algae use up carbon dioxide in the water. After the algae die, decomposers break down the dead tissue. The decomposers use up all the oxygen in the water. This creates a dead zone. A dead zone is an area in a body of water where nothing grows because there is too little oxygen. There is a large dead zone in the Gulf of Mexico ( Figure below ). The U.S. states outlined on the map have rivers that drain into the Gulf of Mexico. The rivers drain vast agricultural lands. The water carries fertilizer from these areas into the Gulf. I am facing a new situation today: Bobby and Kenny are two prolific farmers from Arkansas who have ponds located down stream from their farm sites. Bobby recently received a large order of potatoes from a neighboring city. Because of this order, Bobby has dramatically increased the amount of fertilizer he is using on his farm. Kenny mainly grows tomatoes, which are not in season right now, so his use of fertilizer is currently low. Over the past month there has been a large amount of rain falling on both Bobby and Kenny's farms. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Who will cause more fertilizer to end up in the ponds near their farm?
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[A]:
Bobby