Which of the following ere causes of pollution of water?
A. Draining of domestic wastes and chemicals from universities directly into the drain.
B. Agricultural runoff and waste from animal, slaughter houses are drained into municipal drain.
C. Pollution is caused by absence of waste-segregation method.
D. Excessive growth and death of living organism in water body can cause pollution.

Options

A. A, B and C
B. B, C and D
C. A, C and D
D. All of these

Answer

D