Which two main forms of coastal erosion are identified?
Geological erosion solely involves the loss of coastal landforms without moving sediments.
Match the human activity with its impact on coastal erosion:
Building structures on the coast
Dredging in rivers and streams
Pollution from construction
Harms plants that stabilize dunes and cliffs
Changes how sand moves along the beach
Takes away sediment needed for beaches
What is a significant challenge for all coastal landforms due to climate change?
Rising sea levels have no impact on the frequency or intensity of storms.
Match the type of erosion with its primary characteristic:
Geological erosion
Human-induced erosion
Natural wearing away of land by environmental forces
Acceleration of natural processes by human actions
Which of the following is an impact of erosion on coastal ecosystems?
Man-made structures like seawalls always improve natural sand movement and reduce erosion down the coast.
Match the coastal protection solution with its description:
Beach nourishment
Seawalls
Green infrastructure
Strong barriers blocking waves and stopping land washaway
Adding sand to a beach
Using plants and natural processes for protection
Which natural process wears away land near beaches, dunes, cliffs, and salt marshes?
Pollution can make shores erode faster by harming plants that help strengthen dunes and cliffs.
Match the coastal landform challenge with its impact:
Increased storm frequency
Rising sea levels
Construction near the coast
Washes away land and worsens storms
Blocks natural paths for water and sand
Washes away beaches and breaks down cliffs
What is one consequence of stronger and more frequent storms on coastal areas?
Soft solutions like beach nourishment are generally more environmentally harmful than hard structures like seawalls.
Match the environmental impact of pollution with the affected coastal feature:
Trash, oil, chemicals hurt marine life
Pollution changes water quality
Oceans and shores
Coral reefs, lagoons, estuaries, tidal flats
What is a primary effect of rising sea levels on beach erosion?
Green infrastructure relies solely on concrete and steel for coastal protection.
Match the coastal problem with its cause:
Animals and plants lose their homes
Less beach for people to enjoy
Damage costs going up
Stronger and more frequent storms
Loss of habitat due to erosion
Rising sea levels
What happens when sea levels rise, making storms worse?
Dredging in rivers and streams primarily benefits beach growth by providing more sediment.
Match the challenge with its primary cause:
Interruption of longshore sediment transport
Shoreline degradation
Eutrophication of habitats
Infrastructure like breakwaters and revetments
Erosion due to wave action and tidal currents
Excess nutrients in freshwater inflow
Why is managing freshwater inflow important for coastal resilience?
People building on the coast often decrease coastal erosion by natural means.
Match the solution type to its general approach:
Engineering adaptations
Nature-based solutions
Building strong barriers like seawalls
Preserving or restoring natural features
Climate change exacerbates coastal erosion by ________.
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