Basic General Knowledge
Missile 'prithivi' aims

to hit target without the help of the Air Forces
to defend a large installations like oil-fields etc. against enemy attacks
None of these
to test the performance of an indigenously built heat-shield

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Basic General Knowledge
The exhaled air contains

a mixture of carbon dioxide and nitrogen
a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
carbon dioxide only
a mixture which has more carbon dioxide than oxygen

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