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Natural Resources (Class-IX)
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QuestionClick to flip
Which of the following are the pollutants with which industries pollute air?
a. H2S
b. CO
c. Cement
d. Asbestos
AnswerClick to flip back
A
a, b, c and d
💡 Explanation:
This is the correct answer as all these pollute the air. H2S or hydrogen sulphide is a very poisonous, corrosive, flammable, and explosive gas. Carbon monoxide is a deadly, colourless, odourless and poisonous gas. It is produced by the incomplete burning of various fuels. Cement and asbestos also produce gases that pollute the air.