earth day puzzle

2. stuff made naturally
5. used in a way that does not deplete it in the short or long term
8. materials that be used again
11. plants, animals, soil organisms and climatic conditions.
14. to turn off the lights to save energy
16. example, food scraps, grass clippings, leaves, animal manure, and coffee grounds.
18. ozone and other layers which make up the Earth's sky as we see it.
20. when something no longer exists

1. trash covered with soil
3. garbage lying on public streets or roads.
4. It is a pale blue gas with a distinctively pungent smell.
6. used in such a way as to create a product of higher quality or value than the original.
7. Car exhaust, burps, and radio broadcasts are all examples of?
9. the study of humans and their relationship with the environment.
10. open geographical area or a specific site
12. Toxic waste dumped into somewhere it shouldnt be
13. To keep or maintain intact.
15. energy from the sun
17. will replenish to replace the portion depleted by usage and consumption
19. sun, soil, water, and air