Environmental systems review

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Across
  1. 2. having to do with money
  2. 3. a population where the majority is post-reproductive
  3. 5. pollution coming from a single source
  4. 6. energy sources like wind and solar
  5. 7. energy sources like coal and oil
  6. 10. an act to reduce water pollution
  7. 13. group of the same species
  8. 14. instead of trashing plastic, do this
Down
  1. 1. moral value
  2. 2. a species close to extinction
  3. 4. this type of pollution is high near airports
  4. 7. pollution does not come from a single traceable source
  5. 8. throw away less trash
  6. 9. this type of pollution confuses birds
  7. 11. use something more than once
  8. 12. an act to reduce air pollution