Magnitude of energy released by an earthquake is calculated using ________?

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SI unit of time is_________?

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The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?

A. 10% B. 20% C. 30% D. 50%...

Which blood cells are called ‘Soldiers’ of the body?

A. White Blood Cells B. Platelets C. Red Blood Cells D. None of the above...

Which of the following is a ferromagnetic material ?

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Edward Genner discovered ‘vaccine’ in___________?

A. 1796 B. 1978 C. 1686 D. 1933...