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

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
when the gust wind itself engulfs the magnetosphere

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World Geography
Which among the following statements is/are correct about Petroleum?Petroleum is an inflammable mixture of oily hydrocarbons.Most of the oil comes from synclines rather than anticlines.Select the correct code from the options given below:

Both 1 & 2
Only 2
Only 1
Neither 1 & 2

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World Geography
Which among the following statements is/are correct about Dust particles in the Earth’s atmosphere?Higher concentration of dust particles is found in equatorial and polar regionsThey are generally found in the lower layers of the atmosphereSelect the correct code from the options given below:

Neither 1 & 2
Only 1
Only 2
Both 1 & 2

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