engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 Environmental Engineering Air and Noise Pollution
Central Pollution Control Board recently labelled which five chemicals as toxic in the manufacturing of crackers and thereby prohibited their respective use?
1
Antimony, Lithium, Mercury, Arsenic and Lead
2
Antimony, Lithium, Chromium, Lead and Nickel
3
Cadmium, Lead, Nickel, Zinc and Iron
4
Beryllium, Cadmium, Mercury, Chromium and Nickel