Wind blowing sediment against rock or land area, or sandblasting is called a. abrasion c. deflation b. deposits d. picking up

a. abrasion

Abrasion in terms of geology is a process, in which erosion and weathering occurs at the surface of the rocks. It involves weathering down, rubbing away, scratching and scuffing of the materials. The intensity of abrasion depends upon the concentration, velocity, hardness of the moving particles from the surface of rocks. It causes major surface level destruction. Wind is an important weathering and erosion agent. The wind can cause major surface level destruction. It can blow away the soil and sediment particles away from the surface of rock by exerting pressure on the surface with friction.  

The wind is responsible for blowing sediments against the rock or land area, or sandblasting is called as abrasion.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

i think that d. wind is the answer.   i missed the question when i answered a. currents.