Which of the following acts as a biofertilize | vedclass

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(D) Cyanobacteria,such as Anabaena and Nostoc,are autotrophic microbes that are widely distributed in aquatic and terrestrial environments. Many of th

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Cyanobacteria

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(D) Cyanobacteria,such as Anabaena and Nostoc,are autotrophic microbes that are widely distributed in aquatic and terrestrial environments. Many of these,such as Anabaena,have specialized cells called heterocysts that fix atmospheric nitrogen. In paddy fields,cyanobacteria serve as an important biofertilizer by increasing the nitrogen content of the soil,which promotes the growth of rice plants.

Column-$I$	Column-$II$
$(a)$ Azospirillum	$(1)$ Symbiotic bacteria
$(b)$ Cyanobacteria	$(2)$ Free-living bacteria
$(c)$ Rhizobium	$(3)$ Mycorrhiza
$(d)$ Glomus	$(4)$ Autotrophic microbe

Which of the following acts as a biofertilizer in paddy fields?

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Match the following columns:

Column-$I$ Column-$II$

$(a)$ Azospirillum $(1)$ Symbiotic bacteria

$(b)$ Cyanobacteria $(2)$ Free-living bacteria

$(c)$ Rhizobium $(3)$ Mycorrhiza

$(d)$ Glomus $(4)$ Autotrophic microbe

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