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Coastal management

Mr D Bishop 12 preguntas 5,0 (5 valoraciones)

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Preguntas del test (12)

  1. 1Hard engineering involves..
    1. AA 'hold the line approach' where defences are constructed to prevent or reduce erosion
    2. BBuilding defences which work with their natural surroundings to reduce and prevent erosion
    3. CConstruction of man made coastal defences
  2. 2Soft engineering involves...
    1. AGreat expense to prevent any erosion from occurring by constructing coastline defences
    2. BWorking with natural systems (e.g. beaches) to reduce erosion by absorbing wave and tidal energy
    3. Cstrategies such as sea walls, groynes and gabions
  3. 3This image shows a groyneImagen de la pregunta 3
    1. AVerdadero
    2. BFalso
  4. 4How do groynes reduce coastal erosion?
    1. AThe reduce the power of the waves by causing them to break out at sea
    2. BThey trap sediment by preventing longshore drift
    3. CTrapping sediment causes a beach to build up which provides a natural coastal protection, reducing a wave's available energy for eroding the cliff face
  5. 5Beach nourishment is a soft engineering approach
    1. AVerdadero
    2. BFalso
  6. 6Sea walls often have...
    1. AA recurved shape
    2. BHeights in excess of 10 metres
    3. CNo gaps within them
    4. DDrainage outlets
  7. 7The image showsImagen de la pregunta 7
    1. AGabions
    2. BManaged retreat
    3. CRevetments
  8. 8People can build offshore reefs/barriers as a form of coastal defence
    1. AVerdadero
    2. BFalso
  9. 9Planting vegetation at the back of a beach prevents erosion by...
    1. Astopping any water from hitting the cliff face
    2. BAbsorbing much of the waves energy
    3. CHolding the sandy surface together, stopping the beach from eroding
    4. DPreventing tourists from being on the beach
  10. 10What is meant by cost-benefit analysis?
    1. AWorking out the cost of something
    2. BComparing the cost of a defence against the value of the area it would protect
    3. CIf something should be built or not

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Descripción
Coastal management strategies
Idioma
English
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Valoración
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