Sun is moving around the centre of the galaxy at a velocity of _______ km/s?By on 0A. 205 B. 210 C. 215 D. 220
Earth is closest to the sun every year in _________ , and farthest away from the sun in ___________?By on 0A. January – July B. June – December C. July – January D. December – June
When the Earth is closest to the Sun, it is called?By on 0A. Aphelion B. Perihelion C. Apoapsis D. Periapsis
When Pluto was cast out from the list of Planets by IAU?By on 0A. September 24, 2006 B. April 28, 2004 C. January 26, 2006 D. August 24, 2006