Coastal erosion

What is Coastal Erosion?

• The conservation efforts to protect coastal wildlife

• The process of building up sediment along the coastline

• The removal and transport of sediment and rocks from the coastline

• A type of urban development near coastal areas

Which of the following is NOT a type of Coastal Erosion?

• Abrasion

• Condensation

• Attrition

• Hydraulic Action

What role do waves play in Coastal Erosion?

• They only affect the temperature of the coastal areas

• They have no significant impact on coastal erosion

• They break down sediment and rocks, transporting them to different areas

• They deposit large amounts of sediment on the shore

What can increase the frequency of Coastal Erosion?

• Decreasing the amount of rainfall in coastal areas

• Human-induced activities and climate change

• Planting more trees along the coastline

• Building more coastal defenses in one place which reduces the beach further down the coast

Which type of wave is most associated with causing erosion?

• Tidal waves

• Standing waves

• Destructive waves

• Constructive waves

What is the result of the constant occurrence of coastal erosion?

• Expansion of coastal land area

• Development of different landforms

• Decrease in ocean water levels

• Increase in coastal wildlife

What is Abrasion in the context of Coastal Erosion?

• The dissolving of sediment by acids in seawater

• The grinding of rocks and pebbles into each other

• Rocks and sand hitting the cliff, causing the wearing down of the rock

• The compression of air in cliff crevices by waves

How does Hydraulic Action cause Coastal Erosion?

• By the deposition of large amounts of sediment

• By grinding rocks and pebbles into each other

• By compressing air in cliff crevices, eroding surrounding rocks

• By dissolving sediment that reacts with acids in seawater

What is a long-term effect of Coastal Erosion?

• Immediate increase in land area

• Instant formation of new coastal landforms

• Rapid urban development

• Shaping the landscape over years or decades

Which is NOT a driver of Coastal Erosion?

• Waves and tides

• Increased coastal vegetation

• Wind and weather patterns

• Construction along coastlines