1. Which planet has the "great red spot"?
a. Jupiter
b. Uranus
c. Mars
d. Neptune
2. Which is the second largest planet in the solar system?
a. Neptune
b. Jupiter
c. Saturn
d. Uranus
3. Which is the hottest planet in our solar system?
a. Mars
b. Venus
c. Mercury
d. Uranus
4. What is Earth's twin planet?
a. Jupiter
b. Saturn
c. Uranus
d. Venus
5. Which is the only planet that can sustain life?
a. Earth
b. Jupiter
c. Saturn
d. Mars