Which of the following is a prototype of a new class of objects defined by the International Astronomical Union (IAU) as dwarf planets?
A) Pluto
B) Uranus
C) Titan
D) Triton
Question 2
Which of the following is a difference between Saturn and Jupiter?
A) Unlike Jupiter, Saturn is rich in hydrogen and helium.
B) Saturn has more liquid metallic hydrogen than Jupiter.
C) Belts and zones on Saturn are less visible than on Jupiter.
D) Unlike Jupiter, Saturn radiates more energy than it receives.