Across
- 4. many animals live underground
- 5. most of the ground is frozen
- 6. Lowest point in the ocean
- 10. where most of the Earth's oxygen in produced
- 11. warm temperature and large amounts of rainfall
- 12. hot summers and cold winters
Down
- 1. tall grasses with scattered trees and shrubs
- 2. many animals migrate during winter
- 3. between high and low tide
- 7. plants store water
- 8. ocean shelf dropoff
- 9. mammals have large fur coats