NEET Biology question

A biogas plant consists of a concrete tank (digester) where the slurry of dung and water is fermented, and above it, a floating cover that

(A)rises as gas is produced and serves as the gas-holder (gas is drawn off via a pipe)Correct
(B)permanently rests at the bottom of the tank
(C)prevents the inlet of dung and water
(D)converts the gas into electricity directly

Answer: (A)

Solution

As described in NCERT, the floating gas-holder cover rises as biogas accumulates within the

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Question ID VK-124719