Water resources

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Across
  1. 6. Water bodies include
  2. 7. One of the subsets of water pollution
  3. 8. Contamination of water bodies, air and soil
  4. 9. Water pollution results when ... are introduced into the natural environment
  5. 10. Disease-causing microorganisms
Down
  1. 1. Contaminants may include ... substances
  2. 2. What source of pollution refers to diffuse contamination that does not originate from a single discrete source?
  3. 3. Leading cause of water degradation
  4. 4. Known as a "universal solvent"
  5. 5. ... treatment - one of the way to prevent water pollution