The Jovian planets have high masses and hence generate powerful gravitational fields, and yet they have low average densities. What does this fact indicate about their interiors?
A) The Jovian planets are composed almost entirely of ice crystals and dust.
B) The Jovian planets are composed almost entirely of water.
C) The interiors of the Jovian planets are hot and gaseous, like those of cool stars.
D) The Jovian planets are composed almost entirely of hydrogen and helium.

Question

Quizplus · Accepted Answer

The low average densities of the Jovian planets, despite their high masses, indicate that they are composed primarily of light elements, with hydrogen and helium being the most abundant. These elements contribute to their large sizes but low densities compared to terrestrial planets.

The Jovian Planets Have High Masses and Hence Generate Powerful