Match the column – I with column – II.

	Column – I		Column – II
1.	Micronutrients	A.	Fe
2.	Macronutrients	B.	Nitrosomonas
3.	Nitrification	C.	S
4.	Denitrification	D.	Thiobacillus

• A

  1 – C, 2 – A, 3 – D, 4 – B 

• B

  1 – C, 2 – A, 3 – B, 4 – D 

• C

  1 – A, 2 – C, 3 – D, 4 – B

• D

  1 – A, 2 – C, 3 – B, 4 - D