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:
Dredging in rivers and streams
Building structures on the coast
Pollution from construction
Takes away sediment needed for beaches
Harms plants that stabilize dunes and cliffs
Changes how sand moves along the beach
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:
Human-induced erosion
Geological 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
Using plants and natural processes for protection
Adding sand to a beach
Strong barriers blocking waves and stopping land washaway
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:
Rising sea levels
Construction near the coast
Increased storm frequency
Washes away beaches and breaks down cliffs
Washes away land and worsens storms
Blocks natural paths for water and sand
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
Damage costs going up
Less beach for people to enjoy
Rising sea levels
Stronger and more frequent storms
Loss of habitat due to erosion
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
Eutrophication of habitats
Shoreline degradation
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:
Nature-based solutions
Engineering adaptations
Building strong barriers like seawalls
Preserving or restoring natural features
Climate change exacerbates coastal erosion by ________.
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