erosion and weathering
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Erosion and Weathering. Erosion is the natural process of wind, water, or ice wearing away soil. Erosion becomes dangerous when humans cause erosion to happen faster than it should in nature. If erosion becomes serious enough, it can damage buildings, crops, or roads. . Erosion.

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Presentation Transcript
erosion
Erosion is the natural process of wind, water, or ice wearing away soil.

Erosion becomes dangerous when humans cause erosion to happen faster than it should in nature.

If erosion becomes serious enough, it can damage buildings, crops, or roads.

Erosion
erosion damages houses
Erosion Damages Houses

Erosion is particularly prevalent in coastal areas. Coastal erosion can cause damage to property by removing the soil that supports the building. In this example the sand beneath the house is eroded away until the house crashes.

erosion damages crops
Erosion Damages Crops

Erosion can also destroy cropland to make it unsuitable for farming. With nothing to hold the soil down, wind can blow away the good top soil.

Good Top Soil

Bad Soil

weathering
Weathering
  • Weathering is the changing of land by water.
  • Weathering often results in large rocks being broken down into smaller rocks or soil.
  • Weathering can also result in canyons and similar formations formed by moving water.
weathering changes surfaces
Weathering Changes Surfaces

Over time, weathering can change the surface of the land. Rivers can cut canyons into the land, as seen in the example below. This process takes a very long time, but can create places like the Grand Canyon.

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