World Geography
The third world includes about 120 countries of

Africa, North America
Asia, Australia and Europe
Asia, Africa and Central America
None of these

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

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