water crossword puzzle

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Across
  1. 2. is the water that is beneath the Earth's surface
  2. 4. is an artificial body of water that usually forms behind a dam
  3. 5. is water that contains wastes from homes or industry
  4. 7. is the ability of a rock or sediment to let fluids pass through its open spaces or pores
  5. 10. is a body or rock or sediment that stores groundwater and allows the flow of groundwater
  6. 11. is the percentage of the total volume of a rock or sediment that consists of open spaces
  7. 12. is the introduction into water that is harmful to organisms living in the water or to those that drink or are exposed to the water
Down
  1. 1. is the process of removing salt from ocean water
  2. 3. is an area in which water travels downward to become part of an aquifer
  3. 6. is the area of land that is drained by a water system
  4. 8. is a method of providing plants with water from sources other than direct precipitation
  5. 9. is a virus, microorganism, or other substance that causes disease