The table shows the primary gases in the composition of four planets.

Question

Planet Jupiter Saturn Uranus Neptune
Atmospheric
Composition 90% hydrogen
10% helium
0.3% methane 90% hydrogen
3.5% helium
0.5% methane 83% hydrogen
15% helium
2% methane
80% hydrogen
19% helium
2% methane


Using the table, which planets have the most similar atmospheres?

a
Jupiter and Saturn
b
Uranus and Neptune
c
Saturn and Uranus
d
Jupiter and Neptune

Answer 1

b. Uranus and Neptune