Across
- 4. we breathe this gas to live
- 5. varity of living organisms
- 8. water that falls from clouds
- 9. a place with many trees
- 10. we should recycle paper, plastic
Down
- 1. land by harmful substances
- 2. people should not cut down too many
- 3. animals live their natural
- 6. we planet live on
- 7. energyfrom sun is called