The chemical equation of photosynthesis includes 6o^2. what does the small number after the o represent?

the total atomic weight of the oxygen

the number of oxygen molecules produced

the number of oxygen atoms in each oxygen molecule

the number of oxygen atoms needed to balance the equation

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.