Which is the brightest star in our night sky?
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What of the following refers to hypotheses which are confirmed by varied tests?
One of four words is a class to which the other three belong. Identify the class.
Fastest Indian supercomputer recently developed by ISRO
WHICH OF THE FOLLOWING IS not A RENEWABLE SOURCE OF ENERGY?
Which one of the following is the largest source of natural energy to humans?
Which of the following technique is used to know the age of a tree in years?
Oparin's theory about 'Origin of life' is related to