Across
- 2. supply water to
- 3. height of land above sea level
- 4. not rare or unusual
- 5. a part of a larger place
- 6. an area of low land between mountains and hills
- 8. an are of very dry land where few plants grow
- 9. an important or interesting part of something
Down
- 1. group of mountains
- 2. to act together
- 3. all the living and nonliving things that interact in a certain plaice
- 7. natural part of Earth's surface