World Geography
The umbra is

None of these
both (a) and (b)
the inner portion of the moon's shadow
formed by tangents to the sun and moon

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World Geography
The land-sea distribution or the positions of the world's continents and major oceans influences

the major pressure belts that develop from the general circulation of the atmosphere
both (a) and (b)
the development of the mid-latitude cyclonic depressions, at the convergence zone between polar and
None of these

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