World Geography
The part of the earth and thin layer of air above its surface, which support life on earth, are referred to as

stratosphere
biosphere
mesosphere
ionosphere

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

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

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

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