Correct option is C
- Mercury is the closest planet to the Sun and also the smallest planet in our solar system. Because of its proximity to the Sun, Mercury experiences extreme temperatures, with daytime temperatures reaching around 430°C (800°F) and nighttime temperatures dropping to -180°C (-290°F) due to its lack of atmosphere to retain heat.
- Mercury moves at a speed of 47.87 km/s, completing one revolution around the Sun in 88 days.
- Mercury has an extremely thin atmosphere, mainly composed of oxygen, sodium, and hydrogen.
- Its surface is heavily cratered, resembling Earth’s Moon, due to frequent meteorite impacts.
- Unlike Earth and many other planets, Mercury has no natural satellites or moons.
