Ineed the mega big super ultra ultimate super smash bros

B

eliminate one choice each

we start with A

no immagration occured in the process

the question didn't tell you that they were originated from another place or something like that

the second choice B

well, the people that survived are from one allele so i think it is the choice

the third choice

it didn't say the population was small in number,but the purple all individuals are dying.However, the population may inctease due to the abnormal fertility of red allele individuals

the fourth choice

well, no mutation occur he didn't mention?change in Alleles or one individual with strange genetic features has suddenly appeared

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

just here for the other one bc they put up with u