1-Which of the following planets is known as ‘Morning Star’?

(a) Mercury (b) Venus (c) Mars (d) Jupiter

2-Which planet of the solar system spins on its axis at the fastest rate?

(a) Mercury (b) Earth (c) Jupiter (d) Saturn

3-Which planet is known as the ‘Watery Planet’ ?
(a) Mercury (b) Earth (c) Mars (d) Jupiter

4- Which planet looks reddish in the night sky?
(a) Mercury (b) Mars (c) Jupiter (d) Saturn

5-The correct sequence of planets in the descending order of their equatorial diameter is :
(a) Mars, Mercury, Uranus, Earth (b) Earth, Mars, Mercury, Uranus (c) Mercury, Uranus, Mars, Earth (d) Uranus, Earth, Mars, Mercury

6-Which of the following is the largest of the inner planets?
(a) Venus (b) Mercury (c) Mars (d) Earth

7-In 1610, Galileo Galilei discovered four moons of which planet?
(a) Saturn (b) Jupiter (c) Neptune (d) None of these

8-In order of their distances from the Sun, which of the following planets lie between Mars and Uranus?
(a) Earth and Jupiter (b) Jupiter and Saturn (c) Saturn and Earth (d) Saturn and Neptune

9-The planet Mercury is difficult to be observed most of the time because:
(a) it gets hidden behind Venus (b) it goes too far away from the Earth (c) it being too close to the Sun, gets hidden by the glare of the Sun (d) it cannot be seen at night as at that time no sunlight falls on it.

See also
Geography-Que & Ans #1
Geography-Que & Ans #2

10-Comets revolve around:

11-Which two planets of the solar system have no satellites?
(a) Mercury and Venus (b) Venus and Mars (c) Mercury and Mars (d) Venus and Neptune

12-The planet having thirteen moons is :
(a) Venus (b) Mars (c) Uranus (d) Neptune

13-‘The length of its day and the tilt of its axis are almost identical to those of the earth’. This is true of:
(a) Uranus (b) Neptune (c) Saturn (d) Mars

14-The hottest planet is :
(a) Mercury (b) Venus (c) Jupiter (d) Saturn

15-Which of the following is the brightest planet?
(a) Mercury (b) Venus (c) Mars (d) Jupiter

16-Which of the planets is nearest to the earth?
(a) Jupiter (b) Venus (c) Mercury (d) Mars

17-Which planet is known as the Earth’s Twin?
(a) Venus (b) Mars (c) Uranus (d) Neptune

18-Which one of the following planets takes the same number of days for rotation and revolution?
(a) Mars (b) Venus (c) Mercury (d) Jupiter

19-On which of the following planets of the solar system does the sun rise in the west and set in the east?
(a) Venus (b) Mars (c) Jupiter (d) Saturn

20-Which of the following planets of the solar system has the longest day?
(a) Mercury (b) Jupiter (c) Venus (d) Earth