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

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

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World Geography
Which among the following period in the demographic history of India is called the Period of Stable Population?

1891 to 1921
1921 to 1951
1951 to 1981
1981 to Present

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World Geography
Which among the following pairs is/are correctly matched?Horst – Depressed block of planetary crust bordered by parallel faultsOceanic trench  – Depressed block of planetary crust bordered by parallel faultsSelect the correct code from the options given below:

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

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