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Which of these correctly compares the masses of different objects in the universe?
F.A moon has less mass than a star and more mass than the planet it orbits.
G.A planet has less mass than a galaxy and more mass than the star it orbits.
H.A galaxy has less mass than a moon and more mass than a planet.
J.A star has less mass than a galaxy and more mass than a planet.
To compare the masses of different objects in the universe, we need to understand their relative sizes and compositions. Let's analyze each option to determine which one correctly compares the masses:
F. A moon has less mass than a star and more mass than the planet it orbits.
This comparison seems inaccurate because stars are usually much more massive than both moons and planets. Therefore, this option is incorrect.
G. A planet has less mass than a galaxy and more mass than the star it orbits.
Compared to stars, planets generally have significantly less mass. However, galaxies consist of billions or even trillions of stars, making them much more massive than planets. Therefore, this option is correct.
H. A galaxy has less mass than a moon and more mass than a planet.
Since galaxies typically contain billions of stars, they are far more massive than moons and planets. Hence, this option is incorrect.
J. A star has less mass than a galaxy and more mass than a planet.
This comparison is accurate since stars do have less mass compared to galaxies, while they have more mass compared to planets. Hence, this option is correct.
In conclusion, the correct option is G: "A planet has less mass than a galaxy and more mass than the star it orbits."