The average density of which of these planetary groups is close to that of water (1000 kg/m³)? A) Mercury and Venus because they are close to the Sun B) terrestrial planets because they are of relatively low mass and have been compressed very little by gravitational forces C) asteroids because they are very small objects D) large, outer planets because of their composition-hydrogen and helium

Question

Quizplus · Accepted Answer

The large, outer planets (such as Jupiter and Saturn) have a lower average density close to that of water due to their composition, which is primarily hydrogen and helium. These gases are much less dense than the rocky materials that make up the terrestrial planets.

The Average Density of Which of These Planetary Groups Is