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

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

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World Geography
The temperature inversion is

whenever the normal decrease of atmospheric temperature
when the decrease in temperature or moisture or both takes place
All of these
whenever the normal decrease of atmospheric temperature or moisture or both change with height over

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