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NEET BIOLOGYMedium

Match Column-I with Column-II.

A

(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

B

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

C

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

D

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

Step-by-Step Solution

Nitrogen fixation is conversion of atmospheric N2N_2 to NH3NH_3 (ammonia). It is carried out by N2N_2 fixers such as Rhizobium. NH3NH_3 is converted to NO2−NO_2^- (nitrite) by nitrifying bacteria called Nitrococcus. Then NO2−NO_2^- is converted to NO3−NO_3^- (nitrate) by nitrifying bacteria called Nitrobacter. Thiobacillus carries out denitrification, a process where NO2−/NO3−NO_2^- / NO_3^- is converted to N2N_2.

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