Across
- 1. made by fossil fuel and is used for cooking.
- 6. nonrenewable energy resource, such as oil and coal, formed over millions of years.
- 10. a natural that can be used replaced over relativelyshort time.
- 12. conservation method in which old matirals are processed to make new ones.
- 13. resource that will never run out.
- 14. a natural resource that cannot be replaced or replaced only over a thousands or millions of years.
Down
- 2. energy as solor,wind,or nuclear that can be replaced traditional fossil fuel,such as coal,oil,and natural gas.
- 3. any material made naturally that is used by humans or living things.
- 4. energy used from the sun
- 5. alternative energy
- 7. energy used when hot like magma etc
- 8. to save something
- 9. renewable energy drived from burning organic matirals such as wood alcohol.
- 11. energy produced by water.