Earth's crust mainly contains ______.
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____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.
Which formula correctly describes productivity?
The cell walls of many organisms of Fungi kingdom are made of a tough complex sugar called ______.
Sher Khan defeated _________ at Chausa (1539) and Kanauj (1540), forcing him to flee to Iran.
The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)
If cosecA - cotA = x, then the value of x is
Who discovered Antarctica?
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