Solar System MCQs

11. What is the smallest planet in our solar system?
a) Venus
b) Mercury
c) Mars
d) Earth

12. What is the hottest planet in our solar system?
a) Mercury
b) Venus
c) Mars
d) Jupiter

13. What is the coldest planet in our solar system?
a) Mars
b) Uranus
c) Neptune
d) Pluto

14. What is the only planet in our solar system known to have active plate tectonics?
a) Mars
b) Earth
c) Venus
d) Jupiter

15. What is the largest volcano in our solar system?
a) Mount Everest (on Earth)
b) Olympus Mons (on Mars)
c) Mauna Loa (on Earth)
d) Mount Etna (on Earth)