Which planet is known for its prominent ring system?

• A. Jupiter
• B. Saturn
• C. Uranus
• D. Neptune

Answer: (B)

The main idea is recognizing which planet has a very noticeable ring system. Saturn’s rings are iconic because they encircle the planet and are bright enough to be seen with small telescopes from Earth. These rings are made mostly of ice particles with some rock, and they span thousands of kilometers in width but are extremely thin, reflecting sunlight and making them easy to spot. The rings lie in Saturn’s equatorial plane and are held in place by the planet’s gravity. While Jupiter, Uranus, and Neptune do have rings, they are faint or dark and far less prominent than Saturn’s, so Saturn is the best answer.