Solar System – Planets, Moons, and Sun MCQs

1. Which planet is known as the “Red Planet”?
(A) Mercury
(B) Venus
(C) Mars
(D) Jupiter

2. What is the largest planet in the solar system?
(A) Saturn
(B) Neptune
(C) Earth
(D) Jupiter

3. Which planet is closest to the Sun?
(A) Earth
(B) Mercury
(C) Mars
(D) Venus

4. Which planet has the most number of natural moons?
(A) Mars
(B) Jupiter
(C) Earth
(D) Saturn

5. What is the main component of the Sun?
(A) Oxygen
(B) Carbon
(C) Hydrogen
(D) Nitrogen

6. Which planet has a day longer than its year?
(A) Earth
(B) Mars
(C) Venus
(D) Neptune

7. Which planet has a prominent ring system?
(A) Uranus
(B) Saturn
(C) Neptune
(D) Jupiter

8. What is the name of Earth’s only natural satellite?
(A) Titan
(B) Europa
(C) Moon
(D) Phobos

9. Which planet is tilted on its side, rotating almost horizontally?
(A) Neptune
(B) Uranus
(C) Mercury
(D) Jupiter

10. What type of celestial body is the Sun?
(A) Planet
(B) White Dwarf
(C) Star
(D) Asteroid