Which of the following statements best describes a planetary system?
A planetary system is made of either a central star or a central planet with several planets and other objects or stars orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system is made of a central planet with other planets and objects orbiting around it. The planets are bound to their orbits by gravity. Our solar system is the only example of a planetary system. There are not any other planetary systems in the universe.
A planetary system is made of a central star with several planets and other objects orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system has an inner and outer star that balances the gravitational waves.
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Which of the following statements best describes a planetary system?
A planetary system is made of...
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