1. Hydroelectric come from the energy of fallen water. 2. Using fossil fuels is the main reason of global
3. Turning off the lights, TV and computer when we aren't using them is a way to , or save energy.
4. Energy efficient light bulbs use energy than normal light bulbs.
5. is made from trees.
6. energy comes from things besides fossil fuels.
7. You can or bike to school instead of driving.
8. Most of the energy we use around the world comes from .

Please answer these quickly. I'm tired.