Environment

2. the production and discharge of something, especially gas or radiation
3. the study of organisms and their surroundings
5. non-renewable resources originating from plants
7. covering or submerging of normally dry land with a large amount of water
9. keep safe from harm or injury
10. long term shifts in temperatures and weather patterns
12. to protect
14. accident or a natural catastrophe that causes great damage or loss of life
17. that is not depleted when used
18. a change in climate attributed directly or indirectly to human activity that alters the composition of the world's atmosphere
22. put someone or something at risk
23. species dying out
24. to make poisonous

1. current rise in the average temperature of the Earth's air and oceans
4. to cut down trees for monetary gain
6. able to be maintained at a certain rate or level
8. where the ultraviolet rays are absorbed
11. the natural home or environment of an animal or plant
13. the weather conditions prevailing in an area
15. convert into reusable material
16. something that negatively affects natural ecosystems, biodiversity, and the climate
19. the surroundings or conditions in which a person, animal, or plant lives or operates
20. the reduction of something by a large amount so that there is not enough left
21. gases that are trapped in the atmosphere