Weathering vs. Erosion
Weathering and erosion are two geological processes that deal with the change or movement of objects such as rocks and soil.
Weathering is the physical or chemical breakdown or change of objects due to weather conditions. It occurs mainly through the action of wind, water, and temperature on rocks and soil. It does not involve the transport of objects to a new location. Weathering often results in rounding sharp edges of rock formations.
Erosion is the removal and transport of surface materials (soil, rocks, mud, etc.) through the actions of wind, water, and ice. It can occur slowly over time, such as the migration of sand dunes, or very quickly, such as a result of flooding. It works in conjunction with gravity to move and deposit sediment.
The primary difference between weathering and erosion is that weathering occurs in place whereas erosion involves movement to a new location. Both are caused by similar factors of wind, water, ice, temperature, and even biological action. They can also occur together.
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