19 Current climate change is occurring because __________.
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Clouds and reflective surfaces on Earth absorb radiation and the atmosphere
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The amount of energy from the sun varies and the heat from radiation can be trapped 20
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If you look at a graphical representation of at least a 50-year period between 1920 and 2014, you would see __________, __________, and __________.
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Slow and gradual changes in global temperatures, receding groundwater, rising sea levels Increasing global temperatures, melting ice caps and glaciers, rising sea levels 21 What did the Clean Air Act of 1970 require the Environmental Protection Agency to do? Create limits and regulations for indoor pollution sources. List likely dangerous pollutants emitted from stationary and mobile sources. Name known pollutants and set up programs to monitor their use. Establish ways to increase public awareness of air pollution. 22 Choose the action that is NOT associated with the sustainability movement. A restaurant in a large US city imports truffles from France to support international trade. A young woman finds a place to live very near to her downtown office building and walks or cycles to work each day. A farmer replaces aging water infrastructures on his farm to ensure long-term access to safe drinking water. A homeowner tends trees in his yard to ensure they will provide maximum benefits for future generations. 23 Choose the correct description of the National Environmental Policy Act (NEPA).
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24 Choose the true statement about sources of air pollution in the United States.
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25 Which of the following is an involuntary environmental risk?
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