Can you tell me how much energy Americans use for different things?
What exactly is energy?
What are alternative energy sources?
Why do gas prices continue to go up and what will we do when it's all gone?
What is biodiesel?
What are some negative and positive aspects of wind energy?
How much solar energy can fuel a whole city?
What does it mean to conserve energy?
What are windmills?
How do we get geothermal energy?
Can you give me an example of indirect solar energy?
What is uranium?
What is renewable energy?
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