The polar radius of our earth is nearly 6357 km. Aproximately, how much longer is its equatorial diameter?
Among the various longitudes passing through India which one forms the basis of the Indian Standard Time?
Name the river which divides the region into two plateaus Malwa and Deccan?
The parallel of 23 ½° north is called
The first man to reach South Pole was
Seismograph is an instrument used for recording