Erosion occurs based on the movement of water, wind, or ice over a surface and typically moves on the downward-creep slope because of

Erosion occurs based on the movement of water, wind, or ice over a surface and typically moves on the downward-creep slope because of Gravity.

Explanation:

Erosions have several stages, depending on the level of depth and the severity of their occurrence. Generally, they begin with the process of surface washing of the soils, also called leaching or laminar erosion; then, they intensify with the process of action of the rains and the winds, appearing some holes and marked "lines" on the earth, the erosions in furrows or erosive furrows.

Severe erosion occurs in mountainous areas with steep declivity. In some cases, when the relief is very steep, earth mass movement may occur, a phenomenon that can be intensified by the saturation of the soils by rainwater.

3 box to the first, 2 box to the 4th, the 4th to the 3rd

explanation:

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