When plants and animals decay, the organic nitrogen is converted into inorganic nitrogen. The inorganic nitrogen is in the form of

Options

A. ammonia
B. elements of nitrogen
C. nitrates
D. nitrides.

Answer

a

Explanation

The inorganic nitrogen exists in the form of ammonia, which may be lost as gas to the atmosphere, may be acted upon by nitrifying bacteria, or may be taken up directly by plants