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Photosynthesis: Math Lesson: Activity 2 of 3

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Most of the power plants in the U.S. generate electricity by burning fossil fuels. A minority of power plants in the U.S. uses nuclear, hydroelectric, and other alternative sources of energy to generate electricity.

Here’s a pie chart that breaks it down by percent:

Coal, petroleum, and natural gas are fossil fuels. What percent of the total electricity generated in the U.S. in 2009 came from power plants that burn fossil fuels?
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Question 3 of 4