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Q30: The fuel for a nuclear reactor is
Q31: A 2003 study by the Centers for
Q33: Sunlight, the production of oxides of nitrogen,
Q37: The Aral Sea Disaster Case Study is
Q47: Farming depends, more than any other human
Q47: From where does the majority of that
Q51: Since 1920 in the United States, better
Q53: _ utilizes bacteria and enzymes instead of
Q71: Forty-three percent of global carbon dioxide emissions
Q90: _ are permission from the government to