World Geography
The Penumbra is

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

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World Geography
Which among the following countries is/are the chief importers of Copper?USGermanyJapanIndiaSelect the correct code from the options given below:

None of these
Only 2 & 3
Only 2, 3 & 4
Only 1, 2, & 3

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