Mercury MCQs with answers Page - 8

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Q. Mercury's lack of significant atmosphere results in:

  • (A) Uniform surface temperatures
  • (B) Extremely cold temperatures only
  • (C) Extreme temperature variations
  • (D) Permanent cloud cover

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Q. Mercury's sky appears black because:

  • (A) It has no atmosphere
  • (B) It has a thick atmosphere
  • (C) It is always night
  • (D) It is covered by clouds

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Q. Mercury's orbital period is:

  • (A) 225 Earth days
  • (B) 88 Earth days
  • (C) 365 Earth days
  • (D) 176 Earth days

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Q. Which of the following spacecraft provided the first close-up images of Mercury?

  • (A) Messenger
  • (B) Mariner 10
  • (C) Voyager 1
  • (D) BepiColombo

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Q. Which of these gases is not part of Mercury's exosphere?

  • (A) Oxygen
  • (B) Sodium
  • (C) Hydrogen
  • (D) Methane

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Q. What is the main reason for Mercury’s weak magnetic field?

  • (A) Lack of core
  • (B) Slow rotation
  • (C) Thin crust
  • (D) Frozen core

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Q. The term 'wrinkle ridges' on Mercury refers to:

  • (A) Volcanic cracks
  • (B) Surface folds from cooling
  • (C) River channels
  • (D) Fault lines

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Q. Which of the following is NOT true about Mercury?

  • (A) It has no moons
  • (B) It has polar ice deposits
  • (C) It has a thick atmosphere
  • (D) It rotates three times every two orbits

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Q. Which of the following best describes Mercury’s orbit?

  • (A) Circular and stable
  • (B) Highly elliptical and fast
  • (C) Retrograde
  • (D) Inclined and slow

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Q. Which side of Mercury experiences longer daylight?

  • (A) Both sides equally
  • (B) Side facing the Sun at perihelion
  • (C) Side opposite to Sun
  • (D) It varies randomly
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