Across
- 6. what is the process by which plants use the sun and water to produce glucose?
- 8. what are all plastics made from?
- 10. excess carbon dioxide and other gases in the atmosphere can contribute to this.
- 11. which renewable resource harnesses the sun?
- 12. what is a solid fossil fuel?
Down
- 1. the study of seasonal changes in nature is called...
- 2. name a renewable natural resource which uses the energy from falling water.
- 3. energy source found in ancient decomposed animal and plant remains.
- 4. what kind of energy source utilizes heat from the earth?
- 5. what is the name of the energy source from burning plant and animal remains?
- 7. name a non-renewable natural resource that utilizes fission.
- 9. energy source that harnesses the high and low tides in the ocean
- 11. without this we would not have wind