Which of the following is a main factor of water pollution?

  • A
    Commercial production
  • B
    Windmill
  • C
    Smoke and ammonia
  • D
    Detergents

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When can it be said that the level of pollution in water is high?

Domestic and hospital sewage often contains many undesirable pathogenic microorganisms. If discharged into water bodies without proper treatment, which of the following diseases can be caused?
$I-$ Dysentery or Diarrhoea
$II-$ Typhoid
$III-$ Hepatitis
$IV-$ Cancer
$V-$ Cholera
$VI-$ $AIDS$

Consumption of fish from water polluted by industrial waste causes which of the following diseases?

Explain water pollution. What is the law for its control?

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