World Geography
The magnetic field of earth, Magnetosphere expands to about

None of these
64,000 km above the earth's surface
8000 km above the earth's surface
9600 km above the earth's surface

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World Geography
Which among the following statements is/are correct about Fronts?The boundary zone when two different type of air masses meet is called a Front.Differences in terms of tem­perature, humidity, precipitation, cloudiness, and wind direction are experienced along different fronts.Occluded front is formed when cold front over­takes warm front and warm air is completely displaced from the ground surfaceSelect the correct code from the options given below:

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

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World Geography
The Penumbra is

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

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