Rivers , coasts and glaciers

E.
Embankment : A raised river bank built to prevent or reduce flooding
Erosion: is the wearing away of the land.
Evaporation:the transfer of water from the sea to the earthas water vapour
F.
Flood: the flow of water iver an area that is usually dry
Flood plain:the wide, flat area at the bottom of a valley which is often flooded
Freeze-thaw: rock is broken up due to water in cracks freezing and thawing
G.
Glacial trough: valley with steep sides , flat floor and U shaped cross-section carved by a glacier
Glacier: A slow moving mass of ice flowing down a valley
Groundwater: water stored underground in permeable rocks
Groyne: a barrier built out into the sea to slow the movement of material along the beach
H.
Hydraulic action: the sheer force of water hitting the banks of the river.
Hydrological cycle: continous transfer of water from the oceans into the atmosphere

L.
Levée:an artificial embankment built to prevent flooding
Longshore drift: the movement of material along a coast by breaking waves

M.
Meander:The winding course of a river
Moraine:material that is transported and later deposited by a glacier
P.
Plucking:when ice freezes and stick to the rock
Precipitation: water falls to earth either as a liquid or as a solid
R.
Run off: most water returns to the sea in the form of rivers

S.
Saltation: small particles bounced along the bed in a `leap-frog
Suspension: fine material carried by the river that discolours the water-
Swash:the movement of material up a beach after wave breaks
Silt:Fine soil left behind after a river floods