Question

A short note on sand dunes.

Answer 1

Answer:

A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. ... A dunes windward side is the side where the wind is blowing and pushing material up. A dunes slip face is simply the side without wind.

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Answer 2

ans :- Hills of sand near on ocean or in a desert that is a fun by the wind.

of sand near on ocean or in a desert that is a fun by the wind.In the process of wind moving sand particles up the sandpile, the pile becomes severely steep that it starts to collapse due to the impact of its own weight.

of sand near on ocean or in a desert that is a fun by the wind.In the process of wind moving sand particles up the sandpile, the pile becomes severely steep that it starts to collapse due to the impact of its own weight. This leads to mass movement of sand down the slip face.

of sand near on ocean or in a desert that is a fun by the wind.In the process of wind moving sand particles up the sandpile, the pile becomes severely steep that it starts to collapse due to the impact of its own weight. This leads to mass movement of sand down the slip face. The collapsing of the sandpile will stop the moment the slip face attains the required angle of steepness.

of sand near on ocean or in a desert that is a fun by the wind.In the process of wind moving sand particles up the sandpile, the pile becomes severely steep that it starts to collapse due to the impact of its own weight. This leads to mass movement of sand down the slip face. The collapsing of the sandpile will stop the moment the slip face attains the required angle of steepness. When the right angle is achieved, the dune becomes stable.

of sand near on ocean or in a desert that is a fun by the wind.In the process of wind moving sand particles up the sandpile, the pile becomes severely steep that it starts to collapse due to the impact of its own weight. This leads to mass movement of sand down the slip face. The collapsing of the sandpile will stop the moment the slip face attains the required angle of steepness. When the right angle is achieved, the dune becomes stable. The right angle required for the stability of a dune, better known by scientists as ‘’angle of repose,” is normally approximately 30 to 34 degrees.