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Hard engineering is the building of coastal defences using man-made materials such as concrete or
wood.

Soft engineering is the building of concrete defences using natural materials such as sand.

Hard Engineering Description Advantages Disadvantages
Rock armour rip rap Large rocks placed in · Breaks up the wave · It…

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placed offshore to time to reduce their ruin the placement of
alter wave direction power. the reef.
and dissipate their · Allow the build up · It can be diffoicult to
energy. of sand and allow place the reef
calm water to reach correctly with the
the shore. tides.

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