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Question : The given figures represent two devices A and B used to control air pollution. Identify them and select the correct answer.

Answer»

`{:(""A, ""B), ("Bag filter", "Scrubber"):}`
`{:(""A, ""B), ("Cyclone separator", "Scrubber"):}`
`{:(""A, ""B), ("Scrubber", "Bag filter"):}`
`{:(""A, ""B), ("Bag filter", "Cyclone separator"):}`

SOLUTION :Bag filter and scrubber are USED to control particulate MATTER in air POLLUTION.


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