Avalancheपर्वत की ढाल पर तेजी से नीचे गिरता हुआ कंकड़, हिम एवं बर्फ का वेगशील पिंड।A moving mass of debris, snow and ice sliding rapidly down a mountain slope.
An avalanche is an erosion that happens on a snow slope. It can be caused by explosions, by simple movement if the snow is very loose, or by a very loud noise. Avalanches occur when one layer of snow slides over another. Avalanches usually occur on a slope that is slanted on an angle of 25 degrees to 50 degrees.
