The principal gas evolved from sludge digestion tank is Options: A . &nbspCO B . &nbspCO₂ C . &nbspCH₄ D . &nbspN₂

The principal gas evolved from sludge digestion tank is

Question

The principal gas evolved from sludge digestion tank is

Options:

A . CO

B . CO₂

C . CH₄

D . N₂

Answer: Option C

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