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

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World Geography
Which of the following term is applied to the people of mixed European and American Indian blood in North America?

Amerinds
Apache
Bantu
Aborigines

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