World Geography
The initial increase of magnetic field in magnetic storms is caused

when the gust wind itself engulfs the magnetosphere
when there is a large decrease in field intensity
None of these
when the shock wave, associated with the gusty solar wind, compresses the magnetosphere

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World Geography
The process of weathering results into

All of these
a breakdown of one mass in to two or more masses, with no chemical change in the mineral or rock
the complete loss of particular atoms or the compounds from the weathered surface
the addition of specific atoms or compounds to the weathered surface

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