Across
- 4. animal's natural home
- 5. there is a hole in the ----- layer
- 7. pine, oak etc are examples of this
- 8. where our garbage goes?
- 9. safe place for endangered animals
- 13. a form of energy from the sun
- 14. to use again
- 16. third planet from the sun
Down
- 1. when people gather in one car to go to the same place
- 2. living things need clean --- to breathe
- 3. where farmers trade the vegetables they grow
- 6. threatened by extinction
- 10. what to do with kitchen waste?
- 11. to use old material to make new one
- 12. only 1% of it is drinkable on earth.
- 15. planting these could reduce floods