Chp 14 Water Resources Vocabulary

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Across
  1. 1. -the rapid growth of algae in an area that can cover the surfaces of the water and block sunlight from reaching plants below
  2. 6. -the process of removing salt from seawater
  3. 7. -fresh water found below Earth's surface
  4. 8. -a harmful algal bloom caused by algae that produce reddish pigments
  5. 9. -the buildup of salts in the surface layers of soil
  6. 12. -water that has been used in households, businesses, industries, or public facilities and drained or flushed down the pipes, as well as the polluted runoff from streets and storm drains
  7. 14. -pollution that comes from many places over a large area
  8. 17. -pollution that comes from a specific location (e.g. a factory or sewer pipe)
  9. 19. -an obstruction placed in a river or stream to block its flow
  10. 20. -an artificial lake where water for human use is stored
  11. 21. -having spaces or pores that allow water or other substances to pass through
Down
  1. 2. -spongelike formation of rock, sand, or gravel that holds water
  2. 3. -landscaping using plants adapted to dry conditions
  3. 4. -the boundary between the zone of aeration and the zone of saturation in an aquifer
  4. 5. -the process of moving water from its source to places where humans can use it (e.g. homes and farm fields)
  5. 10. -all of the land area that supplies water to a particular river system
  6. 11. -relatively pure water; few dissolved salts
  7. 13. -fresh water found on Earth's surface
  8. 15. -water that flows over land and collects in a stream or river
  9. 16. -a network of connected streams and rivers
  10. 18. -not allowing water or other substances to pass through