Question

what is the meaning of glacier

Answer 1

A GLACIER IS A RIVER OF SNOW AND ICE THAT MOVEVOUT VERY SLOWLY FROM THE SNOWFIELDS. IT MAY MOVE AT THE RATE OF ONLY A FEW METRES A DAY. THE MAIN WORK OF GLACIER IS TRANSPORTATION , EROTION AND DEPOSITION. A GLACIER CAN ALTER AS WELL AS TOTALY REMOVE THE EXISTING LANDFORMS, CREATING COMPLETELY NEW AND DIFFERENT LANDFORMS.

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Answer 2

A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries. Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs, and other distinguishing features. They also abrade rock and debris from their substrate to create landforms such as cirques and moraines. Glaciers form only on land and are distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water.
On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent including Oceania's high-latitude oceanic islands such as New Zealand and Papua New Guinea. Between 35°N and 35°S, glaciers occur only in the Himalayas, Andes, Rocky Mountains, a few high mountains in East Africa, Mexico, New Guineaand on Zard Kuh in Iran. Glaciers cover about 10 percent of Earth's land surface. Continental glaciers cover nearly 13,000,000 km2 (5×106 sq mi) or about 98 percent of Antarctica's 13,200,000 km2(5.1×106 sq mi), with an average thickness of 2,100 m (7,000 ft). Greenland and Patagoniaalso have huge expanses of continental glaciers.