_ A nitrogenous fertiliser contains 20% N‚Äö√á√á. It could b

1.	_ A nitrogenous fertiliser contains 20% N‚Äö√á√á. It could be$?
A.	Ammonium nitrate
B.	Calcium ammonium nitrate (CAN)
C.	Urea
D.	Ammonium chloride
Answer» C. Urea

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