1.

Most of the plants obtain or absorb nitrogen from soil in the form of [AFMC 1975; JIPMER 1987; CPMT 1982, 84; DPMT 1990; Orissa PMT 2002; MP PMT 2005]

A. Free nitrogen gas
B. Nitric acid
C. Nitrite
D. Nitrates
Answer» E.


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