Scientificly, sand dunes were formed by chemical weathering.
Mixture
water and sand mixed together into one great big form called sinking sand or it can just be very mucky water
The plural possessive form of "sand" is "sands'."
Yes, basically sand is a form of sediment.
The wind causes movement
Sand. Sand is a form a eroded igneous rocks, which is then undergoes cementation/compact to form sandstone.
Sand bars are caused by the deposition of sand along a shoreline where waves and currents slow down and drop sediments. They can form at the mouths of rivers, along coastlines, or offshore in the ocean. Sand bars can change in shape and size due to wave action, tides, and storms.
because sediments has sand in it
You can get sand form the beach or you can buy it from a shop.
glaciers
wind