Coastal Management Quiz

What is a common effect of tropical storms on coastal areas?

• River delta formation

• Coral bleaching

• Coastal flooding and erosion

• Glacier retreat

What is beach nourishment?

• Planting mangroves

• Adding sand to eroded beaches

• Removing sediment from beaches

• Building concrete platforms

What does managed retreat involve?

• Building higher seawalls

• Allowing certain coastal areas to flood

• Relocating coral reefs

• Planting trees inland

Revetments are built to:

• Grow coral reefs

• Stop tourism

• Absorb wave energy

• Trap sediment

Groynes are structures that:

• Absorb storm surges

• Stop cliff erosion

• Trap longshore drift

• Raise sea levels

What is a disadvantage of groynes?

• They are biodegradable

• They increase erosion down the coast

• They cool the water

• They are mobile

What country experienced severe beach erosion due to seawalls?

• Maldives

• Canada

• Hawaii

• Brazil

How do coral reefs help coastal protection?

• They reduce air pollution

• They block river flow

• They absorb wave energy

• They increase tides

Which is not a hard engineering method?

• Groynes

• Sea walls

• Beach nourishment

• Rock armour

Which method is used to reduce the impact of waves at the base of cliffs?

• Beach clubs

• Rock armour

• Dredging

• Pollution control