Mercury MCQs with answers Page - 7

You will find multiple-choice questions (MCQs) related to #Mercury here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. Mercury’s atmosphere is referred to as:

  • (A) Exosphere
  • (B) Troposphere
  • (C) Ionosphere
  • (D) Stratosphere

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Q. Mercury's orbital eccentricity is approximately:

  • (A) 0.01
  • (B) 0.21
  • (C) 0.38
  • (D) 0.67

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Q. Mercury’s interior is believed to have a:

  • (A) Completely solid core
  • (B) Liquid outer core and solid inner core
  • (C) Molten mantle only
  • (D) Hollow structure

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Q. The Caloris Basin on Mercury was formed by:

  • (A) Volcano
  • (B) Meteorite impact
  • (C) Tectonic activity
  • (D) Solar winds

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Q. Which of the following elements is NOT significant in Mercury’s exosphere?

  • (A) Sodium
  • (B) Potassium
  • (C) Calcium
  • (D) Methane

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Q. Mercury’s surface gravity compared to Earth is approximately:

  • (A) 0.38 g
  • (B) 0.25 g
  • (C) 0.50 g
  • (D) 0.76 g

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Q. The phenomenon of 'hot poles' on Mercury occurs due to:

  • (A) Axial tilt
  • (B) Orbital eccentricity
  • (C) Solar flares
  • (D) Magnetic storms

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Q. How long is Mercury's sidereal rotation period?

  • (A) 24 hours
  • (B) 58.6 Earth days
  • (C) 88 Earth days
  • (D) 176 Earth days

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Q. Which planet has the second smallest axial tilt after Mercury?

  • (A) Venus
  • (B) Earth
  • (C) Jupiter
  • (D) Uranus

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Q. The density of Mercury is closest to that of:

  • (A) Earth
  • (B) Mars
  • (C) Venus
  • (D) Moon
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