Across
- 3. Animals or plants that are at risk of disappearing forever.
- 4. The cutting down of too many trees in an area.
- 5. fuels – Energy sources like coal, oil, and natural gas formed from ancient plants and animals.
- 7. Illegal hunting or capturing of wild animals.
- 8. Natural substances from the Earth like gold, salt, and iron.
- 9. A clear liquid that all living things need to survive.
- 12. The top layer of earth where plants grow.
- 13. When air, water, or land becomes dirty and harmful.
- 15. Hard, natural materials that make up much of the Earth’s crust.
Down
- 1. Rules made to protect people and the environment.
- 2. Planting trees again in places where they were cut down.
- 6. A large area covered with many trees.
- 10. Useful materials from nature that people use.
- 11. The process of digging minerals and metals from the ground.
- 14. What we breathe that contains oxygen.