Across
- 3. to talk on the internet
- 5. to put sth in a place quickly and not carefully
- 7. in natural conditions
- 9. an animal or plant that may soon doesn't exist
- 10. to keep safe from harm
- 12. the chasing and killing of wild animals against the law
- 13. the cutting down of trees in an area
- 15. in danger of being harmed
- 16. to teach a person or animal to do sth
- 17. poisonous or dirty substances damaging the enviroment
Down
- 1. in danger of extinction
- 2. an increase in the average temperature of Earth's atmosphere
- 4. the activity of bying and selling wild animals for use as pets against the law
- 6. a formal talk
- 8. to collect sb by car
- 11. the destruction of the natural home of an animal or a plant
- 12. threatened with extinction
- 14. thick hair on some animals'body