Please answer this: 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. Its rate of loss has slowed with restrictions on pollutants, but it is still at risk. I am facing a new situation today: Two teams of researchers studied the environment in Antarctica. Team Black studied air pollution and the ozone layer, Team Red studied the water. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which team didn't observe that the culprit are bromine gasses?
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Answer: Red

Please answer this: I read this background article the other day: Communication is any way that animals share information. Many animals live in social groups. For these animals, being able to communicate is essential. Communicating increases the ability of group members to cooperate and avoid conflict. Communication may help animals work together to find food and defend themselves from predators. It also helps them find mates and care for their offspring. In addition, communication helps adult animals teach the next generation learned behaviors. Therefore, communication generally improves the chances of animals surviving and reproducing. I am facing a new situation today: Manny and Dean were two classmates. They had to prepare for a school project so they decided to learn about animals. Manny studied animal communication, while Dean studied animal feeding patterns and nutrition. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which student learned about the ability of animal group members to avoid conflict?
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Answer: Manny

Please answer this: I read this background article the other day: The body's second line of defense against pathogens includes the inflammatory response. If bacteria enter the skin through a scrape, the area may become red, warm, and painful. These are signs of inflammation. Inflammation is one way the body reacts to infections or injuries. Inflammation is caused by chemicals that are released when skin or other tissues are damaged. The chemicals cause nearby blood vessels to dilate, or expand. This increases blood flow to the damaged area, which makes the area red and slightly warm. The chemicals also attract white blood cells called neutrophils to the wound and cause them to leak out of blood vessels into the damaged tissue. I am facing a new situation today: After working out in the yard for the day doing various chores, Karen comes back inside to prepare for a shower. While waiting for the shower to heat up, she notices she got one cut on each of her arms. The cut on her left arm is hardly even noticeable, but the one on her right arm is red and easy to see. Karen gets some cream from her cabinet to use on her cuts after she gets done showering. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which arm has an infected cut?
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Answer:
right arm