Across
- 1. Heating of the Earth’s atmosphere.
- 4. Using something again instead of throwing it away.
- 5. Turning waste into new products.
- 8. Energy from moving air.
- 10. Energy from the sun.
- 11. Something we must save and not waste, like water.
- 12. Animals or plants that may disappear forever.
- 13. Rubbish that pollutes the sea.
- 14. Gas that we need to breathe.
- 15. A place where plants and animals live.
- 16. Energy that comes from sources that do not run out.
Down
- 2. A gas that causes global warming.
- 3. Cutting down too many trees.
- 6. Gas that plants need to live.
- 7. The opposite of "clean."
- 9. Something we throw away that we don’t use.