&nbsp A flood is an overflow or accumulation of an expanse of water that submerges land. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Flooding may result from the volume of water within a body of water, such as a river or lake, which overflows or breaks levees, with the result that some of the water escapes its usual boundaries.

Natural causesEdit

Heavy rainEdit

When heavy rain falls for several days, or even for several hours, flooding can result.

World's hazards
On land EarthquakeVolcanic eruptionFloodDesertification (caused by drought) • Soil erosion
On water TsunamiHigh WavesTidal flood
On air HurricaneTornadoesStorm
Caused by human DesertificationGlobal warmingFloodOzone depletionPollution
Controlling Flood controlSorting out the greenhouse problemsDesert controlReafforestation

Template:Flood control

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