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When the wind blows, it also blows forth tiny bits of sand. When the wind becomes calmer, the sand drops. This is called Erosion (by wind). When the winds get stronger again, the sand could be blown away again. It also keeps laying down if there is also a plant with ground-keeping roots.
The Dutch guys thank their lives on these things, it has kept them from starvation for like 100,000 ( hundred-thousand) years.
Wiki User
∙ 7y ago
Wiki User
∙ 15y agoWind, mostly. Also the sea, if the dunes are near the sea.
Wiki User
∙ 15y agoWind carrying small sediments from the beach landward creates sand dunes.
Wiki User
∙ 11y agoScientificly, sand dunes were formed by chemical weathering.
Nathan Mwangi
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What causes sand dune to form?
Scientificly, sand dunes were formed by chemical weathering.
What 2 forces form sand dunes on beaches?
Wind and waves form sand dunes on the beach
What causes the sand dunes to move?
The wind causes movement
What causes sand dunes to move?
wind
What causes the sand dunes in Michigan?
glaciers
What type of sand dunes will likely form if the sand supply is limited the wind direction is constant and vegetation is sparse?
barchan dunes
What is necessary for sand dunes to form?
weathering
What are huge piles of sand called?
Large piles of sand are called dunes.
What type of sand dunes will form if the sand supply is limited the wind direction is constant and vegetation is sparse?
barchan dunes
How do sand dunes and loess deposits form?
Wind erosion and deposition may form sand dunes and loess deposits. When the wind strikes an obstacle, the result is usually a sand dune!
What causes dune?
Wind moving sand causes dunes, both in the desert and at the beach.
What features form on dry land?
sand dunes
