Which BEST describes how crossing over increases genetic diversity? A
Crossing over increases genetic diversity because it prevents genetic mutations from occurring within the genes.

B
Crossing over increases genetic diversity because it ensures that offspring receive the dominant alleles for traits.

C
Crossing over increases genetic diversity because it results in new combinations of genes on each chromosome.

D
Crossing over increases genetic diversity because it creates an uneven amount of genetic material on the chromatids.

C

new combinations means variations, and the more the variations there is of a species, the more diverse they are

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