Uranus and Neptune Have Methane Clouds but Jupiter and Saturn

Multiple Choice

Uranus and Neptune have methane clouds but Jupiter and Saturn do not.Which factor explains why?

A) Temperatures on Jupiter and Saturn are too high for methane to condense.
B) Jupiter and Saturn do not contain any methane gas.
C) The rapid rotation of Jupiter and Saturn prevents methane clouds from forming.
D) The stronger gravity on Jupiter and Saturn pulls methane downward so that it can't form clouds.