World Geography
The Penumbra is

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

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World Geography
Which among the following is the most important character of the ‘Goldilocks Zone ‘ of the space?

It is a region of space which is neither too hot nor too cold and has conditions which are a must for life
It is small region of the space which is extremely cold
It is a region of space which is characterized by a lot of asteroids
It is a small region which is extremely hot and presence of most elements in vapor state

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