World Geography
The steady or initial phase of the magnetic storms is

magnetic storm at middle and low altitudes
a sharp increase of the field
preceded by storm sudden commencement
None of these

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World Geography
Which among the following statements is/are correct about Cenotes?Cenote is a natural pit or sinkhole resulting from the collapse of limestone bedrock that exposes groundwater underneath.Cenotes are commonly found on high altitude regions of the world.Select the correct code from the options given below:

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

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