_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole.
How many ‘Pradhan Mantri LPG Panchayat’ would be organised across the country in next one and half year under the ‘Pradhan Mantri LPG Panchayat Yojna?’
The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :