Coastal Erosion: Processes, Impacts, and Management Strategies

Question 1

Identify which of the following processes is not directly involved in coastal erosion:

Accepted Answer

Biodegradation

Answer

Wave action

Answer

Weathering

Answer

Longshore currents

Question 2

Define the term used to describe the gradual wearing away of coastal landforms by the erosive action of waves:

Accepted Answer

Abrasion

Answer

Hydraulic action

Answer

Corrosion

Answer

Attrition

Question 3

Which type of coastline is most vulnerable to erosion?

Accepted Answer

Low-lying and gently sloping

Answer

Steep and rocky

Answer

High and rugged

Answer

Sandy and sheltered

Question 4

Identify the primary factor responsible for longshore drift:

Accepted Answer

Waves approaching the coastline at an angle

Answer

Strong tidal currents

Answer

Oceanic gyres

Answer

Wind patterns

Question 5

Which of the following is not a known negative impact of coastal erosion?

Accepted Answer

Enhanced water quality

Answer

Increased risks from coastal hazards

Answer

Loss of property and infrastructure

Answer

Disruption of coastal ecosystems

Question 6

What is the primary purpose of a seawall in coastal management?

Accepted Answer

Preventing or reducing erosion by wave action

Answer

Improving water circulation

Answer

Enhancing tourism

Answer

Promoting marine life habitats

Question 7

Identify the natural process that helps mitigate the impacts of coastal erosion:

Accepted Answer

Dune formation

Answer

Beach nourishment

Answer

Offshore breakwaters

Answer

Hard engineering

Question 8

Name the geological process involving the breakdown of rocks by the action of wind, water, and ice:

Accepted Answer

Weathering

Answer

Compaction

Answer

Deposition

Answer

Erosion

Question 9

Which of the following factors does NOT contribute to coastal erosion?

Accepted Answer

Dune formation

Answer

Coastal currents

Answer

Sea level rise

Answer

Wave action

Question 10

What type of wave is most effective in eroding coastal landscapes?

Accepted Answer

Destructive wave

Answer

Tidal wave

Answer

Constructive wave

Answer

Standing wave

Question 11

Which of the following coastal protection strategies involves building a physical barrier to block wave energy?

Accepted Answer

Seawall

Answer

Dune restoration

Answer

Managed retreat

Answer

Beach nourishment

Question 12

What is the term used to describe the gradual landward movement of a coastline due to erosion?

Accepted Answer

Coastal recession

Answer

Longshore drift

Answer

Headland erosion

Answer

Coastal accretion

Question 13

What is the process by which sand and sediment are transported along a coastline?

Accepted Answer

Longshore drift

Answer

Wave refraction

Answer

Coastal deposition

Question 14

Which of the following is a characteristic of a headland?

Accepted Answer

Resistant rock formation

Answer

Sandy beach

Answer

Eroded coastline

Question 15

What is the term used to describe the process by which rocks are broken down into smaller fragments by wave action?

Accepted Answer

Abrasion

Answer

Hydraulic action

Answer

Attrition

Answer

Corrosion

Question 16

Which of the following is an example of a managed retreat strategy to combat coastal erosion?

Accepted Answer

Relocation of buildings away from eroding areas

Answer

Dune stabilization

Answer

Construction of a seawall

Answer

Beach nourishment

Question 17

What is the term used to describe the deposition of sediment by wind or water to form a new landform?

Accepted Answer

Accretion

Answer

Weathering

Answer

Erosion

Answer

Transportation

Question 18

Which of the following is NOT a factor that influences coastal erosion rates?

Accepted Answer

Availability of sediment

Answer

Wave energy

Answer

Shoreline geology

Answer

Climate change

Question 19

Which type of coastal landform is most susceptible to erosion by longshore currents?

Accepted Answer

Sandy beaches

Answer

Fjords

Answer

Cliffs

Answer

Salt marshes

Question 20

Which of the following is a natural strategy for managing coastal erosion?

Accepted Answer

Beach nourishment

Answer

Building sea walls

Answer

Relocating coastal communities

Question 21

Which of the following is a potential impact of coastal erosion?

Accepted Answer

Loss of property and infrastructure

Answer

Improved water quality

Answer

Increased tourism revenue

Answer

Enhanced biodiversity

Question 22

What is the geological term for the process that involves the removal and transport of coastal sediments?

Accepted Answer

Erosion

Answer

Subduction

Answer

Deposition

Answer

Weathering

Question 23

What is the term for the sediment deposit that forms parallel to the shoreline and protects the beach from wave action?

Accepted Answer

Sandbar

Answer

Delta

Answer

Tombolo

Answer

Spit