Match the following columns:Column-IColumn-II | vedclass

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(A) The correct matches are as follows:$1.$ Mycorrhiza: These are symbiotic associations between fungi and roots of higher plants. They help in the ab

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$1-b, 2-d, 3-a, 4-c$

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(A) The correct matches are as follows:$1.$ Mycorrhiza: These are symbiotic associations between fungi and roots of higher plants. They help in the absorption of phosphorus from the soil $(1-b)$.$2.$ Nostoc: These are cyanobacteria that act as autotrophic $N_2$-fixers $(2-d)$.$3.$ Azospirillum: These are bacteria that live in the soil and act as free-living $N_2$-fixers $(3-a)$.$4.$ Rhizobium: These bacteria form symbiotic associations with the root nodules of leguminous plants to fix nitrogen $(4-c)$.Therefore, the correct sequence is $1-b, 2-d, 3-a, 4-c$.

Column-$I$	Column-$II$
$1.$ Mycorrhiza	$a.$ Free-living $N_2$-fixer
$2.$ Nostoc	$b.$ Phosphorus absorption
$3.$ Azospirillum	$c.$ Leguminous plants
$4.$ Rhizobium	$d.$ Autotrophic $N_2$-fixer

Match the following columns:
Column-$I$ Column-$II$
$1.$ Mycorrhiza $a.$ Free-living $N_2$-fixer
$2.$ Nostoc $b.$ Phosphorus absorption
$3.$ Azospirillum $c.$ Leguminous plants
$4.$ Rhizobium $d.$ Autotrophic $N_2$-fixer

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Match the following columns:Column-$I$Column-$II$$1.$ Mycorrhiza$a.$ Free-living $N_2$-fixer$2.$ Nostoc$b.$ Phosphorus absorption$3.$ Azospirillum$c.$ Leguminous plants$4.$ Rhizobium$d.$ Autotrophic $N_2$-fixer