Across
- 3. the movement of animals from one region to another
- 4. the full name for CO2
- 8. an area that has a high quantity or quality of something
- 11. tiny living things found in water, soil and air.
- 12. a young plant raised from a seed
- 13. a continuous and directed movement of sea water generated by forces such as wind
- 14. the opposite of dry
- 15. the adjective form of extinction
Down
- 1. a group of cows
- 2. another word for preservation
- 5. the variety of all living things
- 6. the geological process where material is worn away by natural forces like wind and water
- 7. decayed organic material used in fertiliser
- 9. another term for farming
- 10. at risk of extinction