The three most common agents of erosion are
a. volcanisms, convection, and acid rain
b. rain, frost, and chemicals
c. water, wind, and glaciers
d. weathering, floodplain, and delta

The three most common agents of erosion are c. water, wind, and glaciers. There are actually four main agents of erosion. Gravity should be included in the list. All these things contribute to the wearing away of the Earth's surface. Once soil is deposited on an area, that is now called deposition.

To provide education in rural schools

Its decreasing because of illnesses