Across
- 3. a region's average weather conditions over a long period
- 8. place for multiple animals to live
- 10. areas of tall grasses and scattered trees and shrubs
- 12. permanently frozen layers of soil
- 13. died out
Down
- 1. spreading of desertlike conditions
- 2. decayed plant or animal matter
- 4. semidry grasslands or prairies
- 5. coal for example
- 6. clearing of trees
- 7. the short term changes in the air for a given place and time
- 9. place for an animal or plant to live
- 11. seasonal winds that bring either dry or moist air