The correct answer is: Earth.
The radiation belts are two doughnut-shaped regions of high-energy particles that surround Earth. They are made up of protons and electrons that have been trapped by Earth’s magnetic field. The inner belt is located about 1,000 miles above Earth’s surface, while the outer belt is located about 12,000 miles above Earth’s surface.
The radiation belts are a natural phenomenon, but they can be affected by human activity. For example, when a solar storm occurs, it can cause the radiation belts to expand and become more intense. This can pose a hazard to satellites and astronauts in orbit.
The radiation belts are also a source of scientific research. Scientists study the radiation belts to learn more about how Earth’s magnetic field works and to better understand the effects of space weather.
The other options are incorrect because:
- Option B: Jupiter and Saturn also have radiation belts, but they are much larger and more intense than Earth’s radiation belts.
- Option C: Mercury does not have a magnetic field, so it does not have radiation belts.
- Option D: Earth, Jupiter, and Saturn all have radiation belts, but the question asks specifically about the radiation belts around Earth.