Final answer:
The giant planets in our solar system, such as Saturn, Uranus, Jupiter, and Neptune, have rings composed of small particles. The rings are formed by the gravitational forces of the planet, breaking larger pieces apart or preventing smaller pieces from gathering together.
Step-by-step explanation:
The giant planets in our solar system, such as Saturn, Uranus, Jupiter, and Neptune, do have rings. These rings are composed of countless small particles ranging in size from mountains to mere grains of dust. The rings are formed by the gravitational forces of the planet, which either broke larger pieces apart or prevented smaller pieces from gathering together.
For example, the main rings of Saturn, which are the most visible and beautiful, are made up mostly of water ice particles. They could have been formed by the breakup of a moon about the size of Mimas. These moon-sized bodies may have collided with interplanetary projectiles left over from planet formation.
Similarly, the rings of Uranus and Neptune contain much less material and are composed of darker particles compared to the bright particles in Saturn's rings. The exact source of material for these rings is still a mystery.