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Level 2

Rivers and Coasts ~ 2


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Beach Replenishment
Building up the beach by pumping sand or shingle onto it
Bedload
Larger particles moved along a river bed
Delta
Where a river breaks into many distributaries before it reaches the sea
Destructive Waves
Waves that erode coastlines
Constructive Waves
Waves that build up beach material to create landforms
Discharge
The amount of water passing a point at a given time measured in cumecs
Erosion
The wearing away and removal of rocks by the action of wind water or ice
Flood Plain
Flat area next to a river that is liable to flood
Freeze-Thaw
The continued freezing and thawing of moisture in rocks will eventually cause them to break
Groyne
Wooden or concrete construction built across a beach
Hard Engineering
Use of concrete barriers to control water
Impermeable
A surface that does not allow water through it
Longshore Drift
The movement of material along a coastline by the action of the waves
Managed Retreat
Allowing the sea to flood lowland areas
Permeable
A surface that allows water though it