Anew herbal supplement is on the market that claims to build immunity and prevent illness. the best response to this claim is to:
research the information using several sources before taking the supplement.
immediately begin the recommended regimen to stay healthy.
use the supplement when in close contact with others who are ill.
use half of a dose until more studies confirm the supplement’s effectiveness.

A

Explanation:

because of

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.