Question

how does the speed of fanning affect the shape of the sand formed

Answer 1

Answer:

The required answer is shown below:

Explanation:

The speed of fanning affect the shape of the sand formed:

• In sand dunes, the wind does the fanning. Saltation occurs when the wind blows across a desert and carries cand grains in a hopping motion.

• When the wind meets the slope of a dune, it speeds up, allowing it to carry even more sand.

• It has been observed that as velocity increases, the size and spacing of dunes increases. In addition, the higher the velocity, the more grains it can carry. The reversal, as well as the speed, have an impact on the sand's shape.

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Answer 2

Answer:

The speed of fanning affect the shape of the sand formed in different ways.  As wind or breeze starts to move the grains of sand starts to move along. Also there could be small obstacle that causes the sand to lose momentum and settle. This obstacle could be as small as a rock or as big as a tree. A large amount of loose sand in an area with little vegetation usually on the coast or in a dried-up river, lake or sea bed

Explanation:

Wind moves sand in one of three different ways which affect the shape of the sand formed differently:

• Saltation: In saltation when the wind starts moving the sand grains bounce along in the wind. About 95 percent of sand grains move in this manner. This process or effect is called Saltation.

• Creep: In this process when sand grains collide with other grains like clay or gravel causing them to move. Creep accounts for about 4 percent of sand movement.

• Suspension: In this process the Sand grains blow high in the air and then settle. About 1 percent of sand moves this way.

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