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Q.

Which of the following are some important pollutants released by steel industry in India?

I. Oxides of sulphur
II. Carbon dioxide
III. Carbon monoxide
IV. Oxides of nitrogen

Select the correct answer using the code given below.

A I, II and III only
B II and IV only
C II, III and IV only
D I, II, III and IV
Answer & Explanation
Option: [D]

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