NEET Biology question
Consider the following statements about biogas plants: I. The digester is a sealed concrete/cement tank. II. A floating or fixed gas-holder dome collects the biogas produced. III. The fermentation inside the digester is an entirely aerobic process requiring continuous oxygen supply. IV. The spent slurry removed from the outlet can be used as manure. Which of the above statements are correct?
Answer: (A)
Solution
Statements I, II and IV correctly describe biogas plant design and output; statement III is false,
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