One reason that human populations have sidestepped factors that usually control populations is that.

A)the carrying capacity for human has remained constant since humans first evolved.
B)agriculture and industrialization have increased the carrying capacity for our species.
C)the population rate, r, for the human population has always been small.
D)the age structure of human populations has no impact on its population growth.
E)plagues have killed off large numbers of humans at certain times in the past.

the speed increase from w to x due to increased gravity force

the speed decreases from x to y due to decrease in gravity

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