Geography Revision
Impacts of flooding:
Social:
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People and animals could be killed.
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Flood water contiminates sewage = Lack of clean drinking water.
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Contimation of water can lead to diseases.
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Possessions are damaged or lost.
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Houses are damaged = could lead to homelessness.
Economic:
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Businesses have to close, as floodwater approaches.
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Insurance premiums increase after a flood.
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Rescue and repair work is often expensive.
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Unemployment could increase, due to loss of businesses.
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Crops can be destroyed = national economic impact in that this could increase the price of food.
Physical:
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Rivers can be polluted as contiminated floodwater mixes with sewage and litter.
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Erodes river banks.
Positive:
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Deposited sediment onto the flood plain makes the land more fertile.
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Can create wetlands, eg marshes and ponds which can become habitats.