Across
- 4. The severe lack of something
- 6. Made impure by exposure to pollutants
- 11. When a species of animal ceases to exist
- 12. The mass chopping down of trees
- 13. The opposite of deep
- 15. The seasonal movement of a group of animals from one place to another
- 17. Relating to the Earth or dry land
- 18. Another word for plantlife
- 19. The term for animals that live in water
Down
- 1. Not precise
- 2. Africa's famous large antelope
- 3. Existing as a part of a tradition
- 5. A group of mammals that includes mice, squirrels, rats, etc.
- 7. To deplete the stock of fish in a body of water
- 8. A synonym for 'sufficient' or 'appropriate'
- 9. The natural home or environment of an animal in the wild
- 10. An journey via boat or ship
- 14. Rich or abundant
- 16. Another term for 'different'
- 17. The general direction in which something is developing or changing