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Long _______ is the gradient of a river, from its source to its mouth.
Flood ______ channels are artificial channels built to take the pressure of the main river channels.
A _________ stores water and is used to control the discharge of the river.
Flood ____ is the predicted frequency of floods in an area.
_________ is when small pebbles or stones bounce along the river bed.
____ engineering harnesses the natural processes of the river.
________ is when soluble particles are dissolved into the river.
_____ are the projecting ridges on either side of a valley.
Channel _____________ is the artificial removal of meanders from a river.
__________ is when very fine solid particles are held in the water as it moves.
________ is the rolling of heavier rocks and pebbles along the river bed.
________ erosion is the downward erosion of a river bed.
Flood warnings are issued when a flood is predicted in an area.
Waterfalls occur at very steep slopes in a river bed.
Flood plain ______ is the organisation of the land near rivers to avoid building on floodplains.
