Earth Day Crossword Puzzle

2. having to do with or related to the sun
5. the release or discharge of something, especially gases and radiation
8. decomposed organic waste used as plant fertilizer
11. to recycle something in order to create something of greater value
12. to leave trash and garbage in open or public spaces
13. a layer of the atmosphere that prevents harmful ultraviolet radiation from reaching the surface of the earth
14. a community of living organisms and their surrounding environment
15. the layer of gases that surrounds the earth
17. able to be replenished

1. to keep something safe and protect it
2. (of an asset or resource) able to be maintained so it does not deplete
3. where waste is taken to be disposed of
4. the environment where an organism, like a plant or animal, lives
5. (of a species of plant or animal) no longer in existence
6. to avoid wasteful destruction of something
7. to contaminate the natural environment with harmful substance
9. the surrounding area in which a organism lives and inhabits
10. to process used material (like plastic or glass) in order to make it useable again
16. the study of organisms and their interactions with their environment