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Biology · 2024 · 2 marks
CBSE 2024 · Region 5 · Set 2 · Q17
Answer the questions based on the typical biogas plant diagram given below: (a) Identify 'X', 'Y' and 'Z'. (b) Why is dung preferred for the…
Answer the questions based on the typical biogas plant diagram given below :
(a)
Identify 'X', 'Y' and 'Z'.
(b)
Why is dung preferred for the production of biogas ?
Marking-scheme solution
(a)
X– Sludge Y–pipe, Z– dung water or slurry
(b)
because dung contains methanogens /Methanobacterium
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.