Across
- 1. The Sun is an example of this type of energy
- 3. A black fossil fuel used for energy
- 8. Earth's system that includes all water, like oceans and rivers.
- 10. The type of energy produced by wind turbines
Down
- 2. The layer of air surrounding the Earth
- 4. A fuel made from plants, such as corn or soybeans
- 5. The process of cutting down trees for wood
- 6. Rocks, minerals, soil, and landforms belong to this Earth system
- 7. A resource that can be replaced as fast as it is used
- 9. A liquid fossil fuel also known as crude oil.