(A) Nitrosomonas (I) Denitrifying bacteria
(B) Nitrobacter (II) Soil bacteria
(C) Pseudomonas (III) Nitrate bacteria
(D) Azotobacter (IV) Nitrite bacteria
The correct match is
(A) (B) (C) (D)
(1) (IV) (III) (I) (II)
(2) (I) (II) (IV) (III)
(3) (IV) (III) (II) (I)
(4) (II) (III) (I) (IV)