Across
- 4. gases in the atmosphere
- 7. A layer of forest
- 8. has trees, rivers, mountains
- 9. Is long and tall
- 10. most burnt fossil fuel
Down
- 1. Is flowing and sometimes deep
- 2. the permanent removal of trees
- 3. is an animal in the artic
- 5. is generally steeper than a hill
- 6. Usually found on cold water and only the top part of it can be seen