Movement of any particle or molecule from higher concentration to lower concentration is called

osmosis
pinocytosis
diffusion
phagocytosis

The correct answer is diffusion.

Diffusion is type of passive transport in which a substance is transported down the concentration gradient across the semi-permeable membrane.

In other words, a particle or molecule moves from the region of high concentration to the region of low concentration.

The particles or molecules keep moving until their concentrations become equal or uniform across the membrane.

In contrast, osmosis refers to the movement of water or solvent from the region of less concentration (of solute) to the region of high concentration (of solute) across the semi-permeable membrane.

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