Across
- 4. coldest biome,with no vegetation
- 6. synonim for ice age
- 9. mix of genes
- 10. permanent ice
Down
- 1. someone who conducts reindeerherders
- 2. make someone think what happen next
- 3. animal that lived 40.000 years ago
- 5. tone mood of a situation
- 7. maintain in its original state
- 8. genetic information