Which of the following is flood preventing measure ? *
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Natural flood management consists of small measures to reduce the flow of water before it reaches larger rivers.
Measures might include using small barriers in ditches and fields, or notches cut into embankments, to divert the water into open land.
Letting pools form outside the main channel of a river means the water is temporarily removed from the main flow - reducing the power of the floodwaters.
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Some methods of flood control have been practiced since ancient times. These methods include planting vegetation to retain extra water, terracing hillsides to slow flow downhill, and the construction of floodways (man-made channels to divert floodwater).
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