Across
- 4. fossil fuels that are gases trapped in rock formations
- 5. the ability to cause change.
- 6. means “rock oil” formed by remains of single called aquatic organisms.
- 7. extracted from heat stored in the earth
- 10. an energy source that can be easily reproduces or replaced by nature.
Down
- 1. energy resources made from carbon-rich plant an animal remains.
- 2. living or recently dead organic material used for fuel.
- 3. an energy source that can’t be produced, grown, or restored as fast as it’s used.
- 8. sedimentary rock formed with the remains of dead plants at the bottom of swamps
- 9. renewable energy from the sun that can be converted into electrical energy