Across
- 4. place with warm climate, lots of grass, few trees
- 7. something that keeps something from being harmed
- 8. a plant turning h2o, carbon dioxide and sun to food
- 9. gas in the sky
- 10. living things that live on dead things
- 11. destroying forests
- 12. something slowing destroyed by nature
Down
- 1. things you do to make something happen
- 2. where a plant or animal naturally lives
- 3. stuff in a certain environment
- 5. the defence of nature
- 6. able to use without running out