36.Geostationary orbit is at a height of :

37.Which of the following is known as the Red Planet ?

38.Which of the following gases is most predominant in the Sun ?

39.At a latitude of 45 degree, the earth spins on its axis at the rate of

40.The revelations of a satellite photograph of the earth are as follows :1. The Southern hemisphere bulges slightly more than the Northern hemisphere.2. It is slightly pear shaped ellipsoid of rotation.3. The polar axis of the earth is slightly shorter than the equatorial axis. 4. The equatorial circumference is about 40, 000 Km.Which of the above statements are correct ?