Watt do you Know? Take our Energy Quiz!

(Page 2 of 8)

June 9, 2008
By Megan Phelps 
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Answer: A. Coal.

Nearly half the electricity in the United States comes from burning coal, which causes a number of environmental problems.

Natural gas and nuclear are next, and they each account for about 20 percent of our electricity. On the other hand, just a small fraction—about one percent—of our electricity comes from oil. However, all of these fuels pose environmental and health issues. Here are more about problems with fossil fuels and issues with nuclear safety.


3. In the United States, the renewable energy we use mostly comes from:

A. Solar
B. Wind
C. Hydropower
D. Geothermal

 


Answer: C. Hydropower.

According to the U.S. Energy Information Agency (EIA), the largest share of the renewable-generated electricity comes from hydroelectric energy (75 percent), followed by biomass (14 percent), wind (7 percent), geothermal (4 percent), and solar (0.1 percent) .   (Note that these numbers are for electricity, not for other energy uses, such as transportation and home heating.)

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