Mercury

Total Questions: 7

1 - Which is smallest planet of the Solar System?

A ) Mercury ✅
B ) Neptune
C ) Venus
D ) Earth

Explanation:

MercuryKey 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 .

2 - Which planet in the solar system is Nearest from the Sun?

A ) Neptune
B ) Mercury ✅
C ) Venus
D ) Mars

3 - The surface of Mercury is mostly made up of -------:

A ) Rocky material and metal ✅
B ) Ice
C ) Volcanic rock
D ) Water

4 - Which of the following is true about Mercury's orbit?

A ) It has the shortest orbital period ✅
B ) It takes 365 Earth days to complete one orbit
C ) It is highly tilted
D ) It is almost circular

5 - Mercury has no atmosphere because ----:

A ) It has a very weak gravity ✅
B ) It is too far from the Sun
C ) It is too small
D ) It has no atmosphere

6 - Mercury has no moons because ---:

A ) The Sun's gravity prevents it ✅
B ) It is too small to attract moons
C ) It is too close to the Sun
D ) It has no atmosphere

7 - Which spacecraft was the first to visit Mercury?

A ) Voyager 1
B ) Messenger
C ) Mariner 10 ✅
D ) Apollo 13