Correct option is B
Mercury is the closest planet to the Sun. Its average distance from the Sun is about 58 million kilometers (36 million miles). Being the closest to the Sun, it has a very short orbital period, completing one revolution around the Sun in just 88 Earth days.
About Solar System
1. The solar system has eight planets, which are divided into two groups:
- Inner planet or Terrestrial planets: Mercury, Venus, Earth, and Mars. These are rocky and have solid surfaces.
- Outer planet or Gas giants and Ice giants: Jupiter and Saturn are gas giants, while Uranus and Neptune are ice giants, mainly composed of hydrogen, helium, and ices like water, ammonia, and methane .
2. Over 200 moons orbit the planets. Notable examples include Earth's Moon,Jupiter's Ganymede (the largest moon in the solar system), and Saturn's Titan (which has lakes of liquid methane).
3. The Asteroid Belt between Mars and Jupiter contains millions of rocky bodies, with Ceres being the largest.
4. Comets like Halley's Comet originate from the Kuiper Belt and Oort Cloud, icy regions beyond Neptune .
