ANIMAL REPRODUCTION AND DEVELOPMENT
ASEXUAL REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an eroded plateau
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a flat floodplain
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a U-shaped valley
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a V-shaped valley
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Detailed explanation-1: -Valleys usually feature rounded sides that mimic a V or a U shape. U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley with a flat bottom and steep sides. Glacier movement is driven by gravity.
Detailed explanation-2: -Yosemite Valley, California is an example of a U shaped glacial valley.
Detailed explanation-3: -U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular.
Detailed explanation-4: -A roche moutonée is a glacial landscape feature produced as an advancing glacier slides over a hill of surface bedrock. As the glacier advances up the side of the hill, the surface bedrock is abraded and smoothed by rock fragments carried within the base of the glacial ice, creating a more gentle hillslope.
Detailed explanation-5: -Hanging Valleys or U-shaped Valleys, Fjords/fiords These valleys, which are formed by the glacial erosions assume the shape of letter ‘U’ and hence are called as U-shaped Valleys or Hanging Valleys. A fjord is a very deep glacial trough filled with sea water and making up shorelines.