Many farmers in our area clear their fields every few seasons by burning off the fields. they may choose to rotate crops from year to year to assure proper nutrient concentrations. some even use chemical fertilizers and weed-killers to ensure they have a successful and attractive crop. with these practices in mind, which statement below is not true?

a) pioneer species in these areas are perennial wildflowers.

b) tertiary succession is evident each year.

c) primary succession occurs annually.

d) climax communities are never achieved.