Water pollution

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Across
  1. 3. - water held underground in soil.
  2. 5. - an area of land that separates water flowing to all bodies of water.
  3. 7. - the process of settling as a sediment.
  4. 9. - a shaft in the ground to obtain water.
  5. 10. - being a source of pollution.
  6. 11. - a substance that pollutes something.
  7. 12. - introducing harmful things to the environment.
  8. 13. - water collected on the surface.
Down
  1. 1. - a body of rock which can obtain or transmit groundwater.
  2. 2. - a single identifiable source of air, water, noise or light.
  3. 4. - safe drinking water
  4. 6. - generated from rain and snowmelt that flows over land surfaces.
  5. 8. - the preservation, control and development of water resources.