Question
Under which act was the Central Pollution Control Board
(CPCB) constituted in September 1974?Solution
The CPCB was constituted in September 1974 under the Water (Prevention and Control of Pollution) Act, 1974, and later entrusted with powers and functions under the Air (Prevention and Control of Pollution) Act, 1981.
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If z=2+3i, then arg(z)=θ lies in which quadrant?
