The desert sand dunes seen here are created through the processes of and . A) wind and water. B) erosion and deposition. C) weathering and erosion. D) physical and chemical weathering.

C) Weathering and erosion

Explanation:

The completed sentence will be as follows -

The deserts and dunes seen here are created through the process of Weathering and Erosion.

Weathering is defined as the process of breakdown of rocks, soil and minerals into small particles under the influence of atmosphere, water and also biological organisms to some extent. The products of weathering are found at same place as the original rock with little or no movement.

In erosion, the materials such as rocks and soil or dissolved materials are transported from one place to the another place by the action of wind or water flow. So, here displacement of substances takes place.