Understanding Coastal Erosion and Solutions

What is the primary reason humans are fascinated with the coast?

• The sea facilitates commerce and travel.

• The coast is where the ocean meets the land.

• It is fun to swim in the water and lie in the sun on the beach.

• The coastlines are static and unmoving.

What is the main component of coastal erosion?

• Tides

• Ocean currents

• Waves

• Chemical weathering

Tags

NGSS.MS-ESS2-2

Which of the following is NOT a hard armoring solution to coastal erosion?

• Seawalls

• Groins

• Mangrove forests

• Breakwaters

What is the process called when seawater dissolves rocks?

• Physical weathering

• Chemical weathering

• Erosion

• Sedimentation

What is the primary tool for addressing coastal erosion by replacing lost material?

• Seawalls

• Beach nourishment

• Groins

• Breakwaters

Tags

NGSS.MS-ETS1-4

What is the strategy called when development is moved away from the coast to protect it from erosion?

• Armoring

• Retreat

• Beach nourishment

• Sedimentation

What is the projected increase in global mean sea level in 50 years according to the National Oceanic and Atmospheric Administration?

• At least 1 foot

• At least 2 feet

• At least 3 feet

• At least 4 feet

Tags

NGSS.HS-ESS3-5

Which of the following structures is built parallel to shorelines to break up waves?

• Seawalls

• Groins

• Revetments

• Breakwaters

Tags

NGSS.MS-ETS1-1

What is one of the unintended consequences of hard armoring solutions like seawalls?

• They absorb waves.

• They reflect waves, worsening erosion elsewhere.

• They increase sedimentation.

• They promote chemical weathering.

Tags

NGSS.HS-ESS3-4

What natural solution can help stabilize coastlines by absorbing wave energy?

• Concrete seawalls

• Mangrove forests

• Groins

• Breakwaters

Tags

NGSS.MS-LS2-5