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Across 3. in the oceans they use up all the oxygen killing fish and animals 4. a group of plants and animals which function as a system 8. things like paper, glass and other trash we produce 10. smokestack air pollution cause 11. layer of the atmosphere thinning out due to pollution 13. things like metal, fossil fuels and other things from the earth 15. the reader of this article is definitely one of these 16. one of the largest impacts , where we get metals from 17. when groundwater is polluted it is this 18. things which are poisonous

Down 1. caused by burning coal for power 2. water that is in the ground 5. major source of pollution in coastal areas 6. used by farmers to kill pests, these hurt animals and other plants unintentionally 7. food plants 9. to remove as in mining for metal 12. water used to make plants grow 14. polluted air