Which of the following is not a method of estimating national income?
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When is the World Energy Conservation Day celebrated?
The Asiatic Society was established in Calcutta by
What is the duration (in minutes) of one-half of a football match?
____ are the most intelligent mammals on earth.
Who developed the theory of relativity?
Sewing machine was invented by
In which of the following areas, Pandit Jasraj has established his reputation?