World Geography
The thickness of biosphere is

10-12 km above the earth's surface
5-10 km above the earth's surface
8-10 km above the earth's surface
5-8 km above the earth's surface

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World Geography
Which among the following pairs of weathered landforms is/are not correctly matched?Etchplain – A plain where the bedrock has been subject to considerable subsurface weatheringFlared slope – Small to large indentations in vertical to steeply sloping granular rockSelect the correct code from the options given below:

Only 2
Both 1 & 2
Only 1
Neither 1 & 2

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World Geography
The Penumbra is

both (a) and (b)
formed by the tangent that intersects between the sun and the moon
the outer portion of the moon's shadow
None of these

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