Consider the following organisms1. Agaricus2. Nostoc3. Spirogyra Which of the above is / are used as biofertilizer / biofertilizers |ForumIAS

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Q. Consider the following organisms
1. Agaricus
2. Nostoc
3. Spirogyra
Which of the above is / are used as biofertilizer / biofertilizers

[A] 1 and 2 only

[B] 2 only

[C] 2 and 3 only

[D] 3 only

Answer: B

Notes: