Water Introduction Crossword

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Across
  1. 4. water that is chemically and microbiologically safe to drink
  2. 7. The physical process of smaller particles clumping together to form larger particles
  3. 8. Returning heated water to a stream or river
  4. 9. Continual movement of water from place to place
  5. 12. Production of electricity from water-driven sources
  6. 14. Excessive enrichment of water
  7. 16. Direct introduction of contaminants into the water supply
Down
  1. 1. Heating of water that causes it to rise into the air as water vapor
  2. 2. Introduction of contaminants from a wide area
  3. 3. solid mater suspended in a liquid
  4. 5. Water that collects in lakes, ponds, oceans, rivers
  5. 6. Water that returns to the oceans via rain, sleet, snow, hail
  6. 10. Seperation of sodium and chlorine via an electric current
  7. 11. Water that soaks into the ground and does not evaporate or run off
  8. 13. The zone made up of empty spaces, filled with air,between soil particles
  9. 15. Release of water through tiny pores in leaves