Corrosion and Sand Dunes Formation Quiz
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What are the factors that influence the stability of depositional features in coastal environments?

  • Sediment supply, wave energy, sea level changes, and climate
  • Sediment supply, wave energy, currents, and human activities
  • Sediment supply, wave energy, currents, and sea level changes (correct)
  • Sediment supply, human activities, currents, and marine processes

    • What is the importance of understanding the factors influencing the stability of coastal depositional features?

  • It helps understand the impact of human activities on coastal landforms
  • It helps predict future coastline changes
  • It helps assess the resilience of coastal depositional features (correct)
  • It helps manage the development of coastal infrastructure

    • How can fluctuations in sea levels affect the stability of depositional features?

  • By causing erosion and destabilization (correct)
  • By influencing the climate and geological composition
  • By changing the wave energy and currents
  • By altering the sediment supply from offshore sources

    • What is the impact of high wave energy and strong currents on the stability of depositional features?

    <p>They erode or redistribute sediment, impacting stability</p> Signup and view all the answers

    How does sediment supply from offshore sources affect the stability of depositional features?

    <p>It maintains the stability of coastal landforms</p> Signup and view all the answers

    What are the factors that contribute to the impact of subaerial processes on coastal landforms in certain parts of the world?

    <p>Climate, geological composition, and human activities</p> Signup and view all the answers

    What is an environmental challenge that can exacerbate coastal flooding in developing countries?

    <p>Deforestation</p> Signup and view all the answers

    What is a governance challenge faced by developing countries in relation to coastal management?

    <p>Inadequate regulations and enforcement mechanisms</p> Signup and view all the answers

    What is a factor contributing to uncertainty in coastal management due to global warming?

    <p>Sea-level rise projections</p> Signup and view all the answers

    What is a coastal ecosystem loss that can weaken resilience to flooding events?

    <p>All of the above</p> Signup and view all the answers

    What is a key reason for inadequate planning and preparedness for coastal flooding incidents in developing countries?

    <p>Inadequate regulations, enforcement mechanisms, and coordination among government agencies</p> Signup and view all the answers

    What is a factor that contributes to sea-level rise, leading to uncertainty in coastal management?

    <p>All of the above</p> Signup and view all the answers

    What is the process that involves the dissolution of rock material by acidic or alkaline fluids?

    <p>Chemical erosion</p> Signup and view all the answers

    What is the role of plants in the formation of sand dunes?

    <p>To trap material and create an embrio dune</p> Signup and view all the answers

    How does vegetation influence rates of coastal recession?

    <p>It can both minimize and exacerbate coastal recession</p> Signup and view all the answers

    What is the effect of strong winds on sand dunes?

    <p>They increase the height of sand dunes</p> Signup and view all the answers

    What type of plant can lead to more erosion due to the release of a type of chemical?

    <p>Moss</p> Signup and view all the answers

    What is the role of mangroves in coastal erosion?

    <p>They act as a buffer zone to minimize coastal erosion</p> Signup and view all the answers

    What is a natural factor that contributes to variations in erosion rates?

    <p>Natural variability in weather patterns</p> Signup and view all the answers

    What is a result of the construction of coastal structures according to the text?

    <p>Disruption of sediment transport</p> Signup and view all the answers

    Why are areas with low-lying topography more vulnerable to erosion?

    <p>Because they are exposed to increased erosion as sea levels rise</p> Signup and view all the answers

    What is an example of an anthropogenic factor?

    <p>Coastal development</p> Signup and view all the answers

    What can lead to unintended consequences, such as accelerated erosion in adjacent areas?

    <p>Erosion mitigation measures</p> Signup and view all the answers

    How does coastal topography relate to the impact of storm surges?

    <p>It has a direct link to the impact of storm surges</p> Signup and view all the answers

    What is a major reason why Bangladesh's coastal region is susceptible to inundation?

    <p>Low-lying topography</p> Signup and view all the answers

    What is the name of one of the major rivers mentioned in the text?

    <p>Ganges</p> Signup and view all the answers

    Why do tropical cyclones pose a significant risk of coastal flooding and erosion in Bangladesh?

    <p>They combine with high tides</p> Signup and view all the answers

    Why does the high population density of Bangladesh exacerbate the vulnerability of coastal communities?

    <p>It increases the potential human and economic impact</p> Signup and view all the answers

    What makes the inhabitants of Bangladesh's coastal areas more vulnerable to the impacts of flooding and sea level rise?

    <p>Their economic marginalization</p> Signup and view all the answers

    How do the rivers of Bangladesh contribute to the vulnerability of the region?

    <p>They amplify the impacts of flooding and sea level rise</p> Signup and view all the answers

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