rocks carried along by the river wear down the river bed and banks.
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Erosion- Attirtion
.rocks being carried by the river smash together and break into smaller, smoother and rounder particles.
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Erosion- Solution
soluble particles are dissolved into the river.
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Erosion- Hydraulic power
the force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.
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Weathering- Freeze thaw.
Water seeps through the cracks of the rock then the rock starts to expand and eventually breaks.
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Weathering- Biological
Animals and plants can wear away rocks.
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Weathering Chemical
. Rainwater is naturally slightly acidic because carbon dioxide from the air dissolves in it. Minerals in rocks may react with the rainwater, causing the rock to be weathered.
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Weathering- Mechanical
changes in temperature, freezing and thawing, and the effects of wind, rain and waves
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Other cards in this set
Card 2
Front
Erosion- Attirtion
Back
.rocks being carried by the river smash together and break into smaller, smoother and rounder particles.
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