Question

this mitigtion technique to prevent flooding and erosion is called ____. nearshore breakwater dyke revetment stepped revetment rock armour

Explanation:

A stepped revetment is a coastal engineering structure with a stepped design. It helps in dissipating wave energy, reducing the impact of waves on the shore. This, in turn, mitigates flooding and erosion. Nearshore breakwaters are structures built offshore to break waves. A dyke revetment is a covering on a dyke. Rock armour (rip - rap) is a layer of rocks used for protection but does not have the stepped appearance shown (if the image is of a stepped structure).

Answer:

stepped revetment