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What is marram Grass?
marram grass is a grass that is very well adapted to helping create sand dunes.
Why do sand dunes in the Sahara desert cause a problem?
Too many people walking in the dunes, will trample and destroy the Marram Grass and Lyme Grass that binds the sand dunes together. Once destroyed, the wind can blow off the sand to form hollows known as 'blow-outs' and blow the sand inland.
How do obstructions help to form dunes?
As the sand is blown across the beach by the wind, should an obstruction be in the way, sand grains accumulate in the lee (sheltered) of the obstruction. Marram and lyme grasses are able to withstand the rigours of being partly covered by the sand, their roots going deep into the ground. A dune is formed as the marram and lyme grasses bind the sand grains together. These dunes are known as mobile dunes.
Sand spinifex grass is adapted to growing on sand dunes. It is a rapidly spreading plant and the creeping runners produce new root systems. Which of these best explains the benefits of these features?
It provides support by anchoring the plant.
How could sand dunes be held in place to prevent them from drifting onto a parking lot?
There is a type of grass that grows on sand dunes. That holds the sand in place. Hope this helps! :)
What plants grow in sand dunes?
maron grass, cacti etc.
What are huge piles of sand called?
Large piles of sand are called dunes.
How many sand dunes are in Michigan?
There are only two sand dunes in Michigan. The two sand dunes are Sleeping Bear Dunes and Sliver lake sand dunes.
The largest sand dunes?
the largest sand dunes
What are facts about sand dunes?
sand dunes change
What forms when the flow of a river slows and sand settles?
sand dunes i think?
Are sand dunes big?
yes sand dunes are big
