Question

- Q25. A biogas plant uses microorganisms to convert domestic and agricultural sewage
into methane gas which is used as fuel.
Which option contains materials that can all be put into the biogas plant?
Crop residues,
plastic and aquatic
weeds
Paper, human
excreta and leather
pieces
Water hyacinth,
poultry wastes and
husk
Cow dung, glass
pieces and sticks​

Answer 1

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