A flood is an overflow of any amount of water that reaches land. Floods occur usually when the volume of water within a body of water, such as a river or lake, exceeds the total capacity of the formation, and as a result some of the water flows or sits outside of the normal perimeter of the body.
1. Heavy rain where no proper rain water drainage system.
2.melting of ice fields in poles due to global warming.
3.may be due to construction of barriers like Dams, without proper estimation on maximum possible flood area.
4. can happen due to earth quake which may cause tsunamis.
Effects.
1.major disasters.
2.loss of land
3.loss of source of food.
4.spreading of deceases
5.damages to properties.
6.obstruct communication systems like roads rails etc.
7.massive migration may occur, leading to poverty and so on..
A flood is an overflow of any amount of water that reaches land.
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