Question
Write a detailed note on water pollution and its effects.

Answer

 
  • The process by which water becomes contaminated is called water pollution.
  • The causes of water contamination are as follows:
1. Causes of water pollution:
  • River water is polluted due to riverside cemeteries.
  • When contaminated water from industries like paper, leather, dye-chemicals, etc. mixes in reservoirs, the water in reservoirs becomes contaminated.
  • Water used in industrial units contains many toxic substances.
  • When such water is discharged into a river or sea, the water of rivers and seas becomes polluted.
  • City water is contaminated when it is not properly disposed of and discharged into a river or ocean.
2. Effects of water pollution:
  • Water-based organisms are destroyed due to contaminated water.
  • Drinking contaminated water causes waterborne diseases.
  • Groundwater becomes contaminated.
  • Groundwater quality decreases.
  • Crops are destroyed if irrigated with polluted water.
  • Vegetables prepared from contaminated water are harmful to humans.

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