Across
- 1. The name of our planet
- 4. the action of clearing a wide area of trees
- 6. warming an increase in the temperature of Earth
- 7. a synthetic material
- 9. trash that is left lying on public place
- 10. a large woody plant
- 11. to convert materials that can be used again
Down
- 2. to use something less
- 3. Fuels fuel such as coal and oil
- 5. the natural organisms, flora, and fauna
- 8. to use something more than once