How many days in one year on mercury?
A). 56
B). 88
C). 300
D). 36
The term 'meteor' is applied to an interplanetary body ________
A). After it enters the atmosphere of the earth
B). After it enters the earth's atmosphere and explodes in mid air as a ball of fire
C). After it enters the earth's atmosphere and lands on the surface of the earth without exploding in mid-air
D). Before it enters the earth's atmosphere
Which planet looks reddish in the night sky?
A). Jupiter
B). Saturn
C). Mars
D). Mercury
The surface temperature of the Sun is measured
A). 6000°C
B). 12000°C
C). 18000°C
D). 24000°C
Lunar Sea refers to ________
A). A small sea on the moon
B). A sea on earth which experiences high tides due to gravitational attraction of the moon
C). A dark plain on the moon
D). A light water body illuminated by the moon-light