________ are structures built perpendicular to the coast along the entrance to navigable tidal inlets, river mouths, or harbours, to stop them from shifting location or filling with sand from beach drift or longshore currents.

Question

Quizplus · Accepted Answer

Jetties are constructed at the entrances of rivers, harbors, or tidal inlets to prevent them from silting up or shifting by interrupting the flow of sand and sediment. They extend from the shore into the water, guiding currents and tides to keep channels open for navigation.

________ Are Structures Built Perpendicular to the Coast Along the Entrance