100+ Glaciers, Himalayas Gk, Quiz, MCQ Questions and Answers - 1
Differentiate between continental glaciers from valley glaciers?
Continental Glaciers: They are broad and extremely thick. They cover vast areas of land near the earth's polar regions. Glaciers of this type build up at the center and slope outward to flow toward the sea in all directions.
Valley glaciers: They are long, narrow bodies of ice that fill high mountain valleys. Each glacier is a stream of ice, bounded by precipitous rock walls flowing down the valley from an accumulation center near its head. Like rivers, valley glaciers can be long or short, wide or narrow, single or with branching tributaries.
Write a note on Antarctic ice sheet?
In the south polar region, the huge Antarctic ice sheet contains a maximum thickness of nearly 4300 meters.
It covers at area more than 13.9 million square kilometers about 12 times the area of India.
This huge volume off ice contains more than 90 percent of the world's stock of ice and about 75 percent of its fresh water.
What is called a drumlin?
A drumlin is an oval shaped hill that usually consists of rock debris. Most drumlins occur in clusters called drumlin fields.
Write a short note in piedmont glaciers?
Piedmont glaciers occupy broad low lands at the base of steep mountains and form where one or more valley glaciers emerge from the confining walls of mountain valleys.
What are tills?
Glacial deposits consists of clay, silt, sand and rocks of various sizes. Such materials deposited directly by the glacier are known as tills. till is deposited as glacial ice melts and drops its load of rock mountains.
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