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Kamis, 21 Januari 2010

Text Explanation


FLOOD


Floods inundated the event and setting the mainland (which is usually dry) due to the increased volume of water. Floods can occur due to excessive water peluapan somewhere big rain, river water peluapan, or the outbreak of the river dam.

In many arid regions in the world, the land has a water absorption power of the poor, or the amount of rainfall exceeds the ability of soil to absorb water. When it rains, which sometimes happens is the flood suddenly caused terisinya dry water channel with water. Such floods are called flash floods. Flash flood is a flood of low surface area which occurs due to rain continuously and appear suddenly. Flash floods occur when water saturation of soil in the area took place very quickly to not be absorbed anymore. Stagnant water and gather in areas with low surface and flows rapidly into the lower regions. As a result, all sorts of objects in its path surrounded by water with a sudden. Flash floods can cause large losses. Nature conservation should be maintained to prevent flash floods.

Basically the flood was caused by flood water flow occurs in channels or rivers. It could happen anywhere, high place or places as the water rendah.Pada wrote down surface of the earth in the form of rain (precipitation), then the water will flow a lower place through saluran2 or sugai2 in the form of surface flow (run off) some will go / seep into the soil (infiltration) and some more will evaporate keudara (evapotranspirasi).

These floods bring threat of disease outbreaks after floods which cause bacteria, viruses, parasites and other germs, including chemical elements hazardous. As a result of flooding also causes diarrheal disease of growing up between 1 - 7 days, a disease spread by mosquitoes / insects, such as Dengue Fever, Malaria, and others. Chemicals such as pesticides, chemical fertilizers, and the elements with oil-based materials. 
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