ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -Transportation-the movement of eroded material up and down, and along the coast. Deposition-when the sea loses energy, it drops the sand, rock particles and pebbles that it has been carrying, depositing them.

Detailed explanation-2: -Deposition happens when the swash is stronger than the backwash and is associated with constructive waves.

Detailed explanation-3: -The transport of sediments by longshore currents is called longshore drift. Longshore drift is created in this way: Sediment is moved up the beach by an incoming wave. The wave approaches at an angle to the shore. Water then moves straight offshore. The sediment moves straight down the beach with it.

Detailed explanation-4: -Wave Refraction and Coastal Defences Since the paths of the waves in the bay are diverging or spreading out, wave energy is much reduced, allowing deposition to occur.