Across
- 3. a type of ecosystem
- 4. frozen water
- 5. a cold treeless region
- 7. a small plant that grows close to the ground
- 9. a large deer found in Northern Eurasia and northern North America
- 10. the coldest season
Down
- 1. an animal or plant spending the winter in a dormant state
- 2. the study of the earth and its environment
- 6. low temperature
- 8. ice rain