Which is the first Indian State to go wholly organic ?
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Optical fiber works on the principle of -
Equinox means the date when ___________.
The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called?
Which was NOT a cause of the Dust Bowl?
The angles of depression of two ships from the top of a light house are 45° and 30° toward east. If the ships are 200m apart, the height of the light house is (take √3=1.73)
If k is the largest possible real number such that p4+q4=(p2+kpq+q2)(p2-kpq+q2), then the value of k is
Who discovered benzene?