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.
most leaves in china are used for herbal drugs....
Flooding
leaf shape
Flooding
The river is surrounded by levees and pumps.
Levees are built along the banks of rivers
Dams are in front of the flow, levees are at the sides.
The duration of When the Levees Broke is 4.25 hours.
The embankments are called levees. When the levees around New Orleans failed during and after Hurricane Katrina it led to catastrophic flooding. Note that money had been allocated for work on the levees prior to that but it was decided to use it to improve the roads on top of the levees which, technically, was an "improvement" but one wonders how it would have all played out if it had instead been used to improve the strength of those those levees prior to Katrina.
Natural levees are built up over time from debris and sediment whereas artificial levees are man made using sand bags and larger rocks.
Levees and they used a crop rotation!