7/25/2019 Geography_Coasts

1/1

2. The feature marked Z is a tombolo. The long shore drift transports

materials along the coast. If there is a sudden change in the

direction of the coast, the longshore drift continues to transport the

materials in the original direction to the deep sea. The materials

deposited above the water accumulated to form a spit. The spitcontinue to grow, as materials are continuously deposited. The

spits eventually join the two nearby islands to the mainland

forming a tombolo.

3. ave action is more effective at ! "headland# than at $ "%ay#. hen

waves approach a headland, they tend to converge& refracted and giving

rise to greater erosive energy as wave energy is concentrated. hen

waves approach a bay, they tend to diverge and giving rise to lesser

erosive energy as wave energy is spread out.