Please help me!!
I have to make a project on disaster management"flood"and I have to write a preface for it

So can you please send me preface on flood

I am asking for it from the past 1 month but no good response has been given by you side

Pls tell the preface on flood!!!

A flood is an overflow of water on land. Sometimes a river might receive extra water, either from heavy rains or other natural disasters. When this happens, the water overflows from its normal path in the river bed and onto the dry land.
During flood, people move themselves and their most precious belongings to higher ground quickly. The process of leaving homes in search of a safe place is called evacuation.
Water naturally flows from high areas to low lying areas. This means low-lying areas may flood quickly before it begins to get to the higher ground.
The most immediate effect of a flood is the catastrophic loss of life and destruction of buildings and other structures like bridges, sewerage systems, canals etc.
It also damage power transmission and sometimes power generation along loss of drinking water treatment and water supply lack of clean water combined with human sewage in the flood waters raises the risk of waterborne diseases, which can include typhoid, cholera and many other diseases depending upon the location of the flood. 
Entire harvests for a country can be lost in extreme flood circumstances. Some tree species may not survive prolonged flooding of their root systems.
Secondary and long-term effects
Economic hardship due to a temporary decline in tourism, rebuilding costs, or food shortages leading to price increases is a common after-effect of severe flooding.

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