WATER POLLUTION

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Across
  1. 1. the health effects of excess fluoride in drinking water
  2. 5. Chlorofluorocarbon are nonflammable chemicals mainly used in
  3. 6. the following diseases or infections is caused due to poor water hygiene
  4. 7. world’s most polluted river
  5. 8. In most freshwater lakes, the algal productivity is limited by the availability of which of the following inorganic ions
Down
  1. 2. the following techniques is used to determine the concentration of odour compounds in the given water sample
  2. 3. a waterborne disease
  3. 4. According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is
  4. 9. primary causes of water pollution