[Q]: China used alternative fuels to generate electricity, while Mongolia burned lots of fossil fuels. There were frequent debates between the two countries on this matter. Which country released less carbon dioxide into the atmosphere?
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[A]: China

[Q]: David is an environmental scientist. He needed to find causes of wildfires and suggest preventive measures. First, he visited a dense forest. He marked it as location A. Then he visited a grassland, which he marked as location B. After that, he visited a location where he did not find any sign of drought. He marked it as time A. He then visited the same location a year later, and found that the place was facing a severe drought. He marked it as time B. Would time B see less or more wildfires than time A?
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[A]: more

[Q]: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity. Which country had more of an impact on the carbon cycle?
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[A]: India

[Q]: Linda lives in a run down house in downtown Detroit. The walls and floors are degraded, and were made with large amounts of asbestos. As a result, Linda comes into contact with asbestos frequently. Linda's cousin, Gerald, lives in a upper-class neighborhood of Detroit. His house was built recently, and as a result he never comes into contact with asbestos. Who is less likely to develop cancer?
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[A]:
Gerald