Coasts：練習題

Which coastal management strategy involves placing large, durable boulders at the base of a cliff to absorb the energy of incoming waves?

A coastal management authority builds a large, curved concrete wall at the base of a cliff to reflect wave energy back to the sea. This is an example of which management strategy?

Examine the diagram of a cliff profile. Which sequence of events best explains the formation of the notch and the resulting wave-cut platform?

Which of the following environmental conditions is most necessary for the successful development of extensive mangrove swamps?

In the provided diagram of longshore drift, at what angle does the swash typically approach the beach when the prevailing wind is blowing at an angle to the shore?

Define the term swash in the context of coastal wave action.

Describe the process of longshore drift and explain how it leads to the formation of a spit when the coastline changes direction.

Explain how the transition from a cave to a stack occurs through the processes of marine erosion and sub-aerial weathering along a headland.

(a) State two processes of marine erosion. [2]

(b) Explain how a headland and bay coastline is formed when a coast has alternating bands of hard and soft rock. [2]

(a) State two environmental conditions required for the growth of mangrove swamps.

(b) Explain how mangrove swamps protect coastal environments from natural hazards.