World Geography
The main properties of cosmic ray particles are

its electric charge
its energy
its rest mass
All of these are its properties

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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
1981 to Present
1951 to 1981

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World Geography
Which among the following statements is/are correct about the stratosphere?The Stratosphere is the layer of the Earth’s atmosphere which lies beyond the mesosphere.It extends up to an altitude of 50 kilometres from the earth’s surface.This layer is ideal for flying aeroplaneSelect the correct code from the options given below:

Only 2 & 3
Only 1 & 2
1, 2 & 3
Only 1

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World Geography
Which among the following countries is/are the chief importers of Copper?USGermanyJapanIndiaSelect the correct code from the options given below:

Only 1, 2, & 3
None of these
Only 2, 3 & 4
Only 2 & 3

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World Geography
The period of daylight

varies with latitude and the season
reaches a maximum of 24 hour in the polar zones in summer
All of these
is nearly constant near the equator

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