NEET Biology question
Statement 1 (Assertion): Azolla is used as a biofertiliser in waterlogged paddy fields. Statement 2 (Reason): Azolla itself directly fixes atmospheric nitrogen, without the involvement of any microbial partner.
Answer: (C)
Solution
Azolla is indeed used as a biofertiliser in paddy cultivation, so the Assertion is true; however, the actual nitrogen fixation is carried out
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