Across
- 2. another word for trash or garbage
- 3. it gives light and energy
- 4. we drink it every day
- 8. dirty air, water or land
- 9. our planet
- 10. a very big sea
- 12. a big area full of trees
- 15. engergy that comes from sun, wind or water
- 16. we breathe it
Down
- 1. gases that make the earth warmer
- 5. something you can use again
- 6. water that flows to the sea
- 7. we need it for light, heat and machines
- 11. the weather in a place over many years
- 13. it has a trunk, branches and leaves
- 14. bottles are often made of this