Gaseous waste is :

(a) peel of fruits and vegetables
(b) Dirty water of house drainage
(c) Waste of farms and stores
(d) Smoke of burning coal and woods

Anurag Mishra Professor Asked on 3rd February 2016 in Biology.
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Answer:  (d) Smoke of burning coal and woods 

Anurag Mishra Professor Answered on 5th February 2016.
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