Which of the following serve as biofertiliser | vedclass

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(D) Cyanobacteria like $Nostoc$ and $Anabaena$ are widely used as biofertilizers in paddy fields.They are capable of fixing atmospheric nitrogen into

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Both $(a)$ and $(c)$

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(D) Cyanobacteria like $Nostoc$ and $Anabaena$ are widely used as biofertilizers in paddy fields.They are capable of fixing atmospheric nitrogen into ammonia,which enriches the soil with nitrogenous nutrients.Additionally,they contribute to the organic matter content of the soil through their photosynthetic activity,thereby enhancing soil fertility.

Which of the following serve as biofertiliser in paddy fields?

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