earth day crossword

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Across
  1. 3. about 71% of the earth is covered by this
  2. 5. the natural home of a plant or animal
  3. 6. reduce, reuse, _______
  4. 7. a type of resource that can be replenished in a persons lifetime
  5. 9. trash that someone leaves on the ground instead of throwing away
  6. 10. the bottom of every food chain
  7. 12. what humans breathe out
  8. 14. when an animal or plant species is completely dead
  9. 15. a type of pollution caused by lights that brighten the sky
  10. 16. the name for an animal at the top of a food chain or web
Down
  1. 1. make 70% of earths oxygen
  2. 2. the home of an estimated 25% of marine life
  3. 4. when an aquatic species is overhunted to the point of protection, endangerment, or even extinction
  4. 8. happens on April 22 every year
  5. 11. the third planet from the sun
  6. 13. there is a hole in this that causes increased radiation