By keeping wetlands and not taking them away
levees are used to prevent flooding of a river to the adjoing country-basically prevent flooding.
levees are used to prevent flooding of a river to the adjoing country-basically prevent flooding.
There are a number of reasons why trees could prevent flooding. These trees can absorb the excess water for example.
no
marshlands prevent flooding to a nearby town by temporarily storing water
a levee
Levees prevent flooding from rivers that overflow their banks.
The Chinese have built dams to prevent flooding.
They block the water.
they made pipes
To help prevent flooding in London.
control water flow