Why Are Uranus and Neptune Less Massive Than Jupiter and Saturn

question 19

Multiple Choice

Why are Uranus and Neptune less massive than Jupiter and Saturn?

• A) because they formed before Jupiter and Saturn, when there wasn't enough gas in the solar nebula yet
• B) because they formed farther out in the solar nebula, where there was less gas available
• C) because they formed very close to the Sun, where intense solar radiation evaporated some of their atmosphere into space
• D) because they are composed of mostly ice, and there is less ice farther out in the solar nebula
• E) because they formed around a different star, and were captured by the Sun later on.

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