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CBSE Class 8 Answered

Describe water pollution

Asked by shivankthakurdilari | 17 Apr, 2019, 11:06: PM
Expert Answer

Sources of water pollution:

  • Household detergents
  • Sewage
  • Industrial waste
  • Domestic waste
  • Oil spills
  • Fertilisers
  • Pesticides
  • Herbicides

Major water pollutants:

  • Sewage
  • Fertilisers
  • Pesticides
  • Industrial wastes

Effects of water pollution:

  • Brain and nerve damage
  • Cholera, dysentery, jaundice, typhoid, diarrhoea, malaria, dengue, fever and yellow fever
  • Intestinal parasitism leading to anaemia and weakness
  • Skin disorders and cancer, kidney and liver damage
  • Oil spills, eutrophication and biomagnification

Measures to control water pollution:

  • Sewage, industrial and domestic waste should be treated in order to make them harmless.
  • Use of chemical pesticides must be minimised.
  • Washing utensils, clothes and bathing cattle in water bodies must be avoided.
  • Garbage and other domestic waste should not be thrown in water bodies.
  • Leakage in drainage pipes must be repaired.
  • Laws should be formulated to control water pollution.
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