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Demography is best defined as:

Total fertility rate, or TFR, refers to:

Eutrophication can lead to fish kills because:

A forest downwind from several coal-burning power plants shows signs of tree damage. Nearby lakes and streams are becoming more acidic. Which of the following are major environmental impacts of acid rain?

A student says electric cars have no environmental impact because they have no tailpipe emissions. What factors should someone consider when deciding whether to buy an electric vehicle instead of a gasoline vehicle? (Answer in 3-5 complete sentences.)

Oil is mainly extracted by:

One major environmental impact of storage hydropower dams is that they can:

A city has high levels of ozone on hot, sunny summer days. The city is considering banning cars from downtown on days when ozone levels are expected to be high. Do you support this policy? Explain your answer, including one environmental benefit and one possible drawback. (Answer in 3-5 complete sentences.)

A school wants to reduce its electricity bill by installing solar panels on the roof. Which of the following are potential limitations or environmental concerns associated with solar energy?

Under the Clean Water Act, a point source may legally discharge pollutants into U.S. waters only if: