A ) Mars
B ) Venus
C ) Earth
D ) Mercury ✅
Explanation:
✅ Mercury – Key Facts for Competitive Exams
📌 Basic Information :
- ✅ Smallest planet in the Solar System 🌍
- ✅ Closest planet to the Sun ☀️
- ✅ No moons or rings 🌑
- ✅ Surface: Rocky and cratered (like the Moon)
- ✅ Atmosphere: Very thin (almost none)
- ✅ Temperature: Extremely hot during the day, freezing at night
- ✅ Rotation period: 59 Earth days
- ✅ Revolution period (around Sun): 88 Earth days .