21 Which effect of an environmental change does this best illustrate? Due to the short term environmental change of a drought, much of the soil in an area can no longer support a species of wildflower. As a result, the plants now grow only in small regions within the area, migration O loss of habitat O adaptation O extinction Save and Exit Next Submit Mark this and retum​

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.

the answer is 100% density i've answered this question before and done the quiz myself.