Who discovered Nitrogen?
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____________ is a cold desert lying in the Great Himalayas.
Red rot is a disease caused to which of the following plant?
Equinox means the date when ___________.
When does solar eclipse take place ?
Who administers the oath of the President of India?
In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)
Which type of city administration controls smaller urban areas?