Across
- 3. colorless.
- 5. flat land found in arctic and subarctic regions.
- 6. forest area.
- 7. means there is no rainfall
- 8. means there is a little rainfall
- 9. very old decayed plant material.
- 10. the very large plains.
Down
- 1. chemicals that kill harmful insects and weeds, ran into it.
- 2. continuous extent of land.
- 4. permanently frozen ground.