INDIAN GEOGRAPHY

Detailed explanation-1: -Sand and dust storms occur when intensely hot air over the desert causes the lower atmosphere to become unstable, leading to strong winds that stir up vast amounts of loose sand and transporting it for hundreds, sometimes thousands, of miles.

Detailed explanation-2: -Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate.

Detailed explanation-3: -They are usually caused by thunderstorms – or strong pressure gradients associated with cyclones – which increase wind speed over a wide area. These strong winds lift large amounts of sand and dust from bare, dry soils into the atmosphere, transporting them hundreds to thousands of kilometres away.

Detailed explanation-4: -Answer: A dust storm, also called sandstorm, is a meteorological phenomenon common in arid and semi-arid regions.

Detailed explanation-5: -A sandstorm is a strong wind in a desert area, which carries sand through the air.