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

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

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World Geography
Which among the following factor/factors have led to the extensive development of dairy farming in the dairy belt of North America?Hot and humid climateRainfall varying between 55 and 125 cm.Select the correct code from the options given below:

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

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World Geography
The rate of infiltration normally declines rapidly during the early part of rainstorm event and reaches a constant value after several hours of rainfall. The factors responsible for this phenomenon are I. the filling of fine soil pores with water, which reduces capillary forces II. moistened soil, clay particles to swell and reduce the size of pores III. raindrop impact breaking up with soil clumps, splashing fine particles into pores

All of these
I, II
II, III
I, III

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