Which statement is wrong about water pollution ?

Options

A. The government of India has passed the water (prevention & control of pollution) Act in 1978 to safeguard water
B. Water pollution level is measured in terms of BOD.
C. Presence of large amount of nutrients in water bodies also causes excessive growth of planktonic (free floating) algae.
D. Eichhornia is world's most problematic aquatic weed.

Answer

A