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

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

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World Geography
The relative abundance of dissolved salts in seawater in descending order is as follows

chlorine, magnesium, calcium, sodium, potassium, sulphate
sodium, chlorine, magnesium, potassium, sulphate, calcium
chlorine, sodium, magnesium, calcium, potassium, sulphate
chlorine, sodium, sulphate, magnesium, calcium, potassium

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World Geography
Which among the following impact craters of the Earth is/are correctly matched?Lonar crater – Tajikistan Kaali crater – IndiaKarakul crater – EstoniaSelect the correct code from the options given below:

Only 2 & 3
Only 3
Only 2
None of these

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