hydrosphere

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Across
  1. 2. vertical flow of cold, nutrient rich water to the surface
  2. 4. ranges to 1000m, very limited light
  3. 6. extends 200m down, supports most life
  4. 9. boundary between the soil and surface
  5. 11. disease causing organisms
  6. 12. freshwater found under Earth's surface
  7. 14. liquid to vapor into clouds
  8. 15. exceeds 4000m, very high pressure, no light
  9. 17. when excess nutrients are present, sudden explosion in algal blooms happen
  10. 19. water carries sediment through runoff
  11. 20. water returns to Earth's surface, rain/snow
Down
  1. 1. layers of rocks and soil that hold groundwater underground
  2. 3. pollution that occurs when there is a change in temperature
  3. 5. release of water vapor through plants
  4. 7. naturally occurring build up of nutrients
  5. 8. all the liquid on earth and above and below earth
  6. 10. water with human waste, food scraps, oils, chemicals
  7. 13. the contamination of water
  8. 16. warm surface water sinks
  9. 18. change in water from gas to liquid