4. Sammy wants to see if plants really do grow better in sunlight. He uses 3 plants of the
same type and size in 3 locations. Plant A is placed on Mrs. Shaw's countertop in the
center of the room, Plant B is placed inside the cabinet, and Plant C was placed near the
window sill. After 5 days Sammy measures the growth of each plant and documents it in
the table below.

all of the above

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

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.