Sand Dune Formation

Which of these are the ideal conditions needed for dunes to form? Pick three

• Small tidal range

• Strong onshore winds

• A plentiful supply of sand

• Dry climate

How do sand dunes start to form?

• Sand accumulates around an obstruction on the beach

• Sand blows to the back of the beach and builds up.

• The wind blows the sand into mounds

What do we call the first stage of sand dune formation?

• Grey Dune

• Yellow dune

• Dune slacks

• Embryo dunes

What is the name of the pioneer grass species found on sand dunes?

• Sand Grass

• Marram Grass

• Dune Grass

• Mallam Grass

What do we call dunes when they have become high and colonised by marram grass?

• Grey Dune

• Yellow dune

• Dune slacks

• Embryo dunes

What do we call a pond in the sand dunes?

• Grey Dune

• Yellow dune

• Dune slack

• Mature dune

What do we call sand dunes when they become old and covered in vegetation? Two answers here

• Grey Dune

• Yellow dune

• Embryo Dune

• Mature dune

What increases steadily as you move across the dune from the sea? Pick two

• Soil nutrients

• Salt in the soil

• Soil water content

• pH level