Environmental science review

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Across
  1. 2. after this, the population of the country rapidly increased
  2. 5. multiple populations living in the same ecosystem
  3. 7. where freshwater and saltwater meet
  4. 8. how much organic matter there is
  5. 12. the study of human populations
  6. 15. these kinds of organisms can make their own food
  7. 17. a pathogen often spread through water supplies
  8. 20. these kinds of organisms cannot make their own food
  9. 21. the over prescription of antibiotics has helped result in Methicillin ______________ Staphylococcus Aureus
  10. 22. these factors in an ecosystem would NOT be things like plants or animals or fungus
  11. 24. the study of living things and their nonliving environment
  12. 28. how many different living organsisms there are
  13. 29. some bacteria and certain kind of plankton can do this
  14. 30. a compound composed of 3 oxygen atoms
Down
  1. 1. how a population tends to be organized in an area
  2. 3. distance from the north pole or south pole
  3. 4. a cold biome with evergreen trees
  4. 6. this is all of the water on earth
  5. 9. liquid stone
  6. 10. this doesn't happen at the bottom of the ocean
  7. 11. This part of the earth consists of the crust and mantle
  8. 13. a ___________ species is crucial to an ecosystem
  9. 14. the act of magma cycling upwards in the mantle and then back down as it cools
  10. 16. a beneficial trait for a species
  11. 18. these can slip, causing seismic events like earthquakes
  12. 19. this type of relationship is where one organism is unaffected and the other is helped
  13. 23. Orcas whales and leopard seals would be an example of __________________ relationship
  14. 25. nitrogen and phosphorous are key components of this
  15. 26. a resource that can be replenished faster than it is used up
  16. 27. air is _________ closer to the surface of the earth