the environment

2. the act of hunting animals illegally
3. not aware of sth
4. the state of being successful , especilly in making money
6. sb who starts a business and is willing to take risks in order to make money
10. for boats, to turn over in the water
13. fuel such as coal or oil that was formed over millions of years from parts of dead animals or plants
14. to become smaller, fewer, weaker, etc.
16. to bring sth to more people's attention
17. to become worse
18. a form of air pollution that is or looks like a mixture of smoke and fog, especially in cities
19. the protection of the natural environment
21. extremely large in area

1. to make sb/sth have a particular quality
5. to damage sth badly
7. the fact that a form of life stops existing
8. considered normal because it reflects what is done or accepted by most people
9. thick, soft, wet mud or substance that looks like it
10. a mixture of organic materials naturally destroyed and used as a fertilize
11. to walk slowly around or to a place, often without any particular sense of purpose or direction
12. to make it difficult for something to continue in the normal
15. to send out large amounts of smoke, fumes
20. a large group of insects, especially bees, moving together in the same direction