Select the correct matches.I Nitrosomonas - N | vedclass

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(C) $1$. $I$ Nitrosomonas: This bacterium oxidizes $NH_3$ to nitrite,not nitrite to nitrate. Nitrite to nitrate conversion is performed by Nitrobacter

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$II$ and $III$

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(C) $1$. $I$ Nitrosomonas: This bacterium oxidizes $NH_3$ to nitrite,not nitrite to nitrate. Nitrite to nitrate conversion is performed by Nitrobacter.$2$. $II$ Thiobacillus: This bacterium is involved in the process of denitrification,where nitrate is reduced to nitrogen gas. This is a correct match.$3$. $III$ Nostoc: This is a cyanobacterium that acts as a free-living nitrogen-fixer. This is a correct match.$4$. $IV$ Azotobacter: This is a free-living nitrogen-fixing aerobic microbe,not anaerobic. Therefore,this is an incorrect match.Thus,$II$ and $III$ are the correct matches.

Column-$I$	Column-$II$
$I$. Nitrosomonas	Nitrite to nitrate
$II$. Thiobacillus	Denitrification
$III$. Nostoc	Free-living nitrogen fixer
$IV$. Azotobacter	Anaerobic nitrogen fixer

Select the correct matches.
$I$ Nitrosomonas - Nitrite to nitrate
$II$ Thiobacillus - Denitrification
$III$ Nostoc - Free-living nitrogen-fixer
$IV$ Azotobacter - Anaerobic nitrogen-fixer

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Nitrifying bacteria perform which of the following processes?

Choose the correct pair:
Column-$I$ Column-$II$
$I$. Nitrosomonas Nitrite to nitrate
$II$. Thiobacillus Denitrification
$III$. Nostoc Free-living nitrogen fixer
$IV$. Azotobacter Anaerobic nitrogen fixer

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Select the correct matches.$I$ Nitrosomonas - Nitrite to nitrate$II$ Thiobacillus - Denitrification$III$ Nostoc - Free-living nitrogen-fixer$IV$ Azotobacter - Anaerobic nitrogen-fixer