Chlorine can kill germs of polluted water.

One should never drink polluted water .

Highly polluted waters have

Which of the following is absent in polluted water?

Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess of chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water.

High biological oxygen demand in a water body means ………. (a) water is not polluted (b) water is less polluted (c) water body contains lots of life forms and organic pollutant. (d) None of the above

Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of

Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of

Carbon monoxide can kill a person because of it's extermely high affinity for

Chlorination of water is done

How would you define polluted water ?