Loose particles such as clay and silt are lifted and removed from the desert surface by a process called

Deflation

Explanation:

Loose particles such as clay and silt are lifted and removed from the desert surface by a process called deflation.

Deflation is one of the methods of wind erosion. The other form is wind abrasion.

In deflation, loose particles are blown away by winds.

Wind abrasion involves the erosion of a place by particles borne in the wind.

(4,-2)

explanation:

6x+4y=16

-6x-9y=-6

-5y=10

y=-2

x=4