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Cause and Effect: Floods.

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Cause and Effect: Floods.

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  • October 25, 2005
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A flood is a very large number or amount of water that rises and spreads. A stream, river, or lake floods when water overflows beyond its banks. Flooding waters cover land that is usually dry. Floods have been a part of life at all ends of the earth, they occur in forests, mountains, and even deserts. They can even happen any time of the year, not just in winter. This essay will investigate the causes and effects of floods, most notably in the areas of; kinds of floods, causes and effects of these floods, and prevention of floods.

There are a few types of flood. A flood that rises and falls rapidly with little or no advance warning is called a flash flood. They are usually the result from intense rainfall over a relatively small area. Streams and rivers periodically flood and the adjacent dry lands that are covered are called flood plains. The main causes of floods are heavy rains and fast-melting snow masses. Coastal areas are occasionally flooded by unusually high tides caused by severe winds over the ocean surfaces, or by tsunamis resulting from undersea earthquakes. Coastal flooding can also be caused by intense rain squalls that accompany a hurricane.

The main cause of flooding is when a lot of rain falls in a few days. The ground becomes so wet that no more rain can trickle through the earth. This rain runs into the rivers and the water level quickly becomes much higher. The river cannot cope with this extra water and the water breaks over the river banks. This is what happened in China in 1998. Countries like Bangladesh, where land is flat with high mountains, are often flooded in the spring. Hurricanes, cyclones, and typhoons can cause floods. These are very strong winds which form over the seas and blow towards coastlines. The winds make the waves in the sea much higher. The waves then crash onto the beach and flood the flat land by the coast. Earthquakes also make possible flooding by shaking the earth causing tsunamis. The tsunamis are big waves...