GEOLOGY
GEOMORPHOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tarn
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Crag and tail
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Nunatak
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Aretes
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Detailed explanation-1: -A cirque (French: [siʁk]; from the Latin word circus ) is an amphitheatre-like valley formed by glacial erosion.
Detailed explanation-2: -Tarns are lakes that form in glacially-carved cirques. They are often dammed by moraines. If they are still associated with moving glaciers, tarns are often full of tiny, glacially-ground sediment that scatter light and can make the water appear colorful.
Detailed explanation-3: -Tarn is a small mountain lake which is set in a glaciated steep-walled amphitheatre known as a cirque. A cirque is formed by ice and indicates the head of a glacier. Some of the cirques are so furbished that a lake formed in the base of the cirque after the ice has melted. These are called tarn.
Detailed explanation-4: -The word is derived from the Old Norse word tjörn ("a small mountain lake without tributaries") meaning pond.