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Question
The interior of a cow-dung pile kept for a few days is quite warm. This is mostly because
Options:
A .  Cellulose present in cow dung is a good insulator
B .  Bacterial metabolism inside the dung releases heat
C .  Undigested material released heat due to oxidation by air
D .  Dung is dark and absorbs a lot of heat
Answer: Option B
:
B
Bacterial metabolism inside the dung releases heat

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