Wednesday, October 21, 2009

Flood~~

A flood is caused by a combination of heavy rainfall
causing river / oceans to over flow their banks, and can
happen at any time of the year, not just in the winter."

"Floodwater can seriously disrupt public and personal
transport by cutting off roads and railway lines, as well
as communication links when telephone lines are
damaged.

"Floods disrupt normal drainage systems in cities, and
sewage spills are common, which represents a
serious health hazard, along with standing water and
wet materials in the home. Bacteria, mould and
viruses, cause disease, trigger allergic reactions, and
continue to damage materials long after a flood.

"Floods can distribute large amounts of water and suspended sediment over vast areas,
restocking valuable soil nutrients to agricultural lands. In contrast, soil can be eroded by
large amounts of fast flowing water, ruining crops, destroying agricultural land / buildings
and drowning farm animals,

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