Natural Resources (Class-IX)

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Multiple Choice

Which of the following are the pollutants with which industries pollute air?

a. H2S
b. CO
c. Cement
d. Asbestos

  1. a, b, c and d
  2. a, b and c
  3. a, b and d
  4. a, c and d
  5. b, c and d
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