Coastal Structures and Ecosystems

What is the primary purpose of building walls in coastal communities?

• To block incoming ocean waves

• To increase tourism

• To create recreational areas

• To provide habitats for wildlife

What material are seawalls typically made of?

• Wood

• Plastic

• Concrete

• Steel

How high can some seawalls be?

• 20 feet

• 30 feet

• 10 feet

• Over 40 feet

What is a levee?

• A type of tree

• A flat, vertical wall

• An earth or concrete structure

• A recreational area

What is the function of a breakwater?

• To provide fishing areas

• To absorb wave energy

• To attract tourists

• To create a beach

Where are breakwaters typically located?

• In shallow parts of the ocean

• In urban areas

• In deep ocean waters

• On mountain tops

What are tetrapods designed to do?

• Absorb wave energy

• Increase wave height

• Block sunlight

• Create tidal pools

What is rock armor?

• A type of fish

• A structure made of rocks along the shoreline

• A protective clothing

• A type of wall

What is one benefit of using natural vegetation for tsunami protection?

• It attracts more tourists

• It is made of concrete

• It provides climbing support during a tsunami

• It grows quickly everywhere

In which climate do mangrove forests typically grow?

• Cold climates

• Tropical and subtropical climates

• Desert climates

• Mountainous regions