Water Unit Review Crossword

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Across
  1. 2. area of ocean needed to sustain the fish consumption of a person, nation, or world
  2. 4. area where a river meets the sea
  3. 5. water that percolates through soil until rock stops it
  4. 7. type of lake that has a large supply of nutrients
  5. 8. natural nutrient enrichment of a body of water
  6. 10. a prolonged period in which precipitation is at least 70% lower
  7. 11. underground caverns and porous layers of sand, gravel, or rock through which water flows
  8. 13. (3 words) the aquatic version of biomes
  9. 15. a concentration of a particular wild aquatic species suitable for commercial harvesting
  10. 16. (2 words) specific sources of pollution that are relatively easy to identify
  11. 17. structure built across a river to control its flow
  12. 18. land area that delivers runoff, sediments and dissolved substances to a lake or river
  13. 19. type of water that flows across the earth's land
Down
  1. 1. (2 words) top of the groundwater zone
  2. 3. type of lake that has a small supply of nutrients
  3. 6. areas of ocean partially protected from human activities
  4. 9. (2 words) broad and diffuse areas from which pollution enters water
  5. 12. area adjacent to a stream in which water enters from overflow
  6. 14. an artificial lake