Science, asked by p1alisur1bhPratishna, 1 year ago

what happens during floods

Answers

Answered by Akashkumarbraill
5
Obviously the water level rises - more or less rapidly. Typically it rises in an area where it is supposed to be - a river perhaps - but goes higher until it escapes the bounds of the natural location - either by overflowing a barrier like a levee or simply by spreading from a channel into a flood plain. 
Depending on how fast the water spreads (the flood rises) it may kill animals and people. Almost always the water is dirty, from the fast flowing current in the river or just from dirt on the ground, so as the water spread into human occupation areas it damages/dirties things intended to be clean and gets grit into delicate mechanisms that need cleaning before they can be used. The organic material (bodies, food, animal droppings) begins to rot and spread a basis for disease. 
Usually, it takes much longer for the water to go down than it took to intrude, although this may be reduced in urban areas with planned drainage and working pumps. Standing water provides an environment for disease the longer it stands and the warmer it is. Drainage may take a very long time especially in clay or other impermeable material.

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Answered by mini24
5
any place where rain falls is vulnerable,although rain is not the only impetus for floods .
during floods the river bank flows which may cause the lack of clean drinking water.
Lack of clean water means lack of food because there will be less amount of water for irrigation purpose.
Also during floods there may be chances of soil erosion because the water waves may take away the soil with it.
There may be a huge destruction of human and animal population in the place of floods.
In the places of floods there will be a large destruction of shelter and property.
There may be many health problems to the humans due to the water borne diseases.
There may be a damage to the cultural, heritage and also historic sites.

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