Across
- 6. movement of seawater in and out of a cavity on the shore
- 7. energy extracted from hot rocks or water beneath the Earth’s surface
- 8. comes from sources that will run out
- 9. obtained from the fission of uranium atoms
Down
- 1. made from decomposing plants and animals
- 2. electrical energy obtained from harnessing breeze
- 3. energy generated or produced by living or once-living organisms
- 4. energy from a source that is not depleted when used
- 5. form of energy that harnesses the power of water in motion