Across
- 3. can be replenish withing a lifetime
- 4. used water
- 7. easily _____________
- 10. burning of plants to create energy
Down
- 1. is what most forms a renewable energy are
- 2. uses heat from deep inside the earth
- 5. cost of renewable energy
- 6. are used in hydroelectric power
- 8. are burned to create energy using ______
- 9. turbines harvest energy from the ____