Across
- 2. Harmful substances in the air, water, or land.
- 6. A resource we save by turning off taps when not in use.
- 7. The variety of life in a particular ecosystem.
- 9. A layer in the atmosphere that protects us from UV rays.
- 11. The planet we are trying to protect.
- 14. Cutting down too many trees in a forest.
- 17. A material that takes hundreds of years to break down.
- 18. To use less of something to help the planet.
Down
- 1. A mix of decayed plants and food used to enrich soil.
- 3. The natural home of a plant or animal.
- 4. To use materials again instead of throwing them away.
- 5. Power we get from fuel, wind, sun, or water.
- 8. To use an item again instead of throwing it away.
- 10. A system of living things and their environment.
- 12. Type of energy that comes from the sun.
- 13. Garbage left on the ground, not in a bin.
- 15. Waste or garbage that can pollute land and water.
- 16. A natural force used to generate clean electricity.