they just work they just work,work,work
the work a machine does is the work outputwhat it takes to do the work is the work inputSources;The_work_that_the_simple_machine_does_is_called_the_work
the work a machine does is the work output what it takes to do the work is the work input
The work done by a machine is called work output
work output
One pro is that the levees help protect the land from a floodplain. Also, the levees help during hurricanes [that's the only one..I think]. But sometimes the levees are not always useful. Just like hurricane Katrina, the levees didn't help or work when the water flooded over from the water in the Gulf of Mexico.
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.
The river is surrounded by levees and pumps.
Levees are built along the banks of rivers
The duration of When the Levees Broke is 4.25 hours.
Dams are in front of the flow, levees are at the sides.
Natural levees are built up over time from debris and sediment whereas artificial levees are man made using sand bags and larger rocks.
When the Levees Broke was created on 2006-08-16.
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levees are artificial or natural slopes or walls to prevent flooding of a river.
levees
Dikes and levees prevent flooding by forming a barrier against rising waters.