Sand Dunes

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1. What is the correct order a sand dune is formed in (from coast in inland)

  • fixed grey dune, embryo dune, yellow dune
  • yellow dune, embryo dune, fixed grey dune
  • embryo dune, yellow dune, fixed grey dune
  • embryo dune, fixed grey dune, yellow dine
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2. What are the conditions for an embryo dune?

  • Dry
  • Wet in Winter, damp in Summer
  • Windy and lots of rain
  • Mud

3. What height can a yellow dune reach up to?

  • 5 metres
  • 7.5 metres
  • 3 metres
  • 10 metres

4. A sand dune is only able to form when which two things are present?

  • strong on-shore winds, obstacles to limit sand movement
  • precipitation, soft rocks
  • obstacles to limit sand movement, longshore drift
  • expanses of dry sand, biological weathering

5. In embryo dunes, how do plants adapt to the conditions?

  • Develop long, smooth leaves
  • Grow taller
  • Developing long routes and thorny leaves
  • By growing in a westerly direction


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