Across
- 5. In danger of disappearing forever.
- 6. A living thing that grows in the ground with leaves or flowers.
- 8. Dirty or harmful things in the air, water, or land.
- 9. A large area full of trees and animals.
- 10. To use materials again to make new things.
- 11. Things that people throw away; trash.
- 12. Animals that live freely in nature, not with people.
Down
- 1. To use something again instead of throwing it away.
- 2. To keep something safe from harm or damage.
- 3. An activity where people collect and remove trash from a place.
- 4. To use less electricity, gas, or water.
- 7. Changes in the world’s weather because of pollution.
- 10. A long line of water that flows to the sea.