Because it blows around so much that the wind stops erosion. This answer may not be right but it should be close. So look it up somewhere else.
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Assuming it was a genuine question, I offer a genuine answer rather than nonsense that is neither right nor close.
Caves except lava-tubes are themselves erosion features, the majority by dissolution of limestone by water flowing through the joints etc in the rock mass.
External erosion will in time remove a cave as it removes the land that held it.
Sea-caves are formed by wave action on the cliff.
Erosion
Erosion is formed by weathering which then forms caves, meandering rivers, valleys and waterfalls.
constant flowing affect erosion
A cave is an agent of erosion. More specifically, chemical weathering forms caves.
Water, erosion, explosives.
Caves are mainly the result of natural geological processes, such as the dissolution of rock by water or chemical weathering. In most cases, caves are formed in limestone or other soluble rocks where water can dissolve the rock over time, creating underground voids. Additionally, caves can also be formed by volcanic activity, glacier movements, or erosion by wind.
caves, and cliffs
Weathering and erosion.
Water and Waves.
Erosion
Erosion is formed by weathering which then forms caves, meandering rivers, valleys and waterfalls.
how does erosion affect animals
The Maquoketa caves in Iowa were formed through years of natural non-glacial erosion.
A cave is an agent of erosion. More specifically, chemical weathering forms caves.
Caves are not common on beaches, but they can be found in certain coastal areas where erosion has created unique rock formations. These caves are typically formed by the action of waves and currents wearing away softer rock layers, leaving behind caves and arches along the shoreline. Beach caves often provide habitat for marine life and can be popular spots for visitors to explore.
constant flowing affect erosion
Caves that are in the desert which are formed by wind erosion