Marine Biomes Crossword

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Across
  1. 8. underwater mountains formed by volcanoes. These mountains have not yet reached the surface
  2. 9. the location where a freshwater river or stream meets the ocean
  3. 11. primarily caused by contamination of drinking water by human and animal waste and causes the most human health problems of any type of pollution
  4. 12. used to determine the effect that a chemical or pollutant has on a living organism
  5. 13. an aggregate of pollution from a large area
  6. 14. the process of creating, enlarging, or preserving wetlands due to human impacts
  7. 15. _______ consists of undersea mountain chains all around the world.
Down
  1. 1. can be traced back to a specific point
  2. 2. the steep gradient that leads to the deep-ocean floor and marks the seaward edge of the continental shelf
  3. 3. makes up less than 3% of Earth’s water supply
  4. 4. When animals ingest POPs, they are absorbed into fatty animal tissue because they are fat-soluble. this process is known as ______.
  5. 5. the gently sloping underwater surface extending from the shoreline
  6. 6. biomes cover around 97% of Earth’s surface
  7. 7. underwater mountains formed by volcanoes. These mountains did reach the surface but have since collapsed to form flat tops
  8. 10. islands above sea level formed by volcanic activity, such as Hawaii