Environment

5. A person who goes on land that does not belong to him usually to hunt or fish illegally
9. Something that kills insects
10. The specific gas that surrounds the earth
11. To use less of something
12. To use something again rather than throwing it out

1. Species/ A specific species that is at risk for extinction due to natural and human forces
2. To use trash to make something new
3. The process of making the environment dirty through things like garbage, chemical or gases
4. Effect/ The retention of radiation of the sun into the Earth's atmosphere that creates a rise in the temperature
6. A mixture of rotten leaves or plants that can be mixed into garden soil to give nutrition to growing plants
7. The act of preserving
8. When something is completely gone from the planet
13. The combination of smoke and fog in the air