Which of the following is a major factor in water pollution?

  • A
    Smoke
  • B
    Industrial waste
  • C
    Detergents
  • D
    Ammonia

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Column-$I$Column-$II$
$(P)$ Suspended solids$(I)$ Fecal matter, bacteria, cloth and paper fibers
$(Q)$ Colloidal materials$(II)$ Sand, silt, and clay
$(R)$ Dissolved materials$(III)$ Nutrients (nitrate, ammonia, phosphate, sodium, calcium)

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