Before nitrogen can be used by living organisms, it
must be converted to water-soluble:
(a) ammonia.
(b) nitrates.
(c) nitrites.
(d) nitrogenous wastes.

Respuesta :

Answer:

B Nitrates

Explanation:

No explanation here sorry •~•

Answer:

nitrates

Explanation:

if u watch a video base on nitrogen cycle it will show the answer and it is nitrates