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Last Updated: Thursday August 04 2005 14:14 GMT


Man cleans up an oil spillage on a beach

Water pollution can be caused by:

  • man-made chemicals used in farming
  • heavy metals
  • waste from factories
  • sediment from the river bed
  • air pollution
  • thermal (heat) pollution
  • soil pollution from rubbish dumps

What can happen?

The water in the earth's biosphere is used and reused again and again by all living things.

Guide to Pollution