Based on the leading scientific theory of solar system formation, which of the following statements best explains why Uranus and Neptune have a significantly different composition than Jupiter and Saturn?
a. Jupiter and Saturn captured more gas from the solar nebula than Uranus and Neptune.
b. The lower masses of Uranus and Neptune allowed more of their hydrogen and helium gas to escape into space.
c. The lower temperatures at the locations of Uranus and Neptune allowed more material to condense into solid form.
d. Jupiter and Saturn formed closer to the Sun, where there was more hydrogen and helium gas and
Ans: a. Jupiter and Saturn captured more gas from the solar nebula than Uranus and Neptune.
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