The nitrogen utilized by most plants is derived from

a. soil.
b. the atmosphere.
c. nitrogen gas.
d. decayed organic matter

I think the correct answer from the choices listed above is option A. The nitrogen utilized by most plants is derived from the soil. Nitrogen is a component of chlorophyll and therefore essential for photosynthesis. Plants use nitrogen by absorbing either nitrate or ammonium ions through the roots.

D, the answer is letter d. because even though fossil fuels take a very long time to form, they do form in the ground just like coal and others.

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.