Trivia Questions On The Solar System

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Trivia Questions On The Solar System - Quiz

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Questions and Answers
  • 1. 

    What planet is similar to earth in size and mass?

    • A.

      Mercury

    • B.

      Jupiter

    • C.

      Venus

    • D.

      Neptune

    • E.

      Not Here

    Correct Answer
    C. Venus
    Explanation
    Venus is similar to Earth in size and mass. Venus is only slightly smaller than Earth, with a diameter that is about 95% of Earth's diameter. It also has a similar mass to Earth, with about 81% of Earth's mass. This similarity in size and mass makes Venus the closest planet to Earth in terms of these physical characteristics.

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  • 2. 

    Which is the second smallest planet?

    • A.

      Pluto

    • B.

      Earth

    • C.

      Jupiter

    • D.

      Mercury

    • E.

      Not Here

    Correct Answer
    D. Mercury
    Explanation
    Mercury is the second smallest planet in our solar system. It is smaller than Earth and Jupiter, and Pluto is no longer considered a planet. Therefore, Mercury is the correct answer as it is the second smallest planet.

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  • 3. 

    Which is not a terrestrial planet?

    • A.

      Mercury

    • B.

      Earth

    • C.

      Venus

    • D.

      Jupiter

    • E.

      Not Here

    Correct Answer
    D. Jupiter
    Explanation
    Jupiter is not a terrestrial planet because it is a gas giant, composed mostly of hydrogen and helium, with no solid surface. Terrestrial planets, on the other hand, are rocky planets with solid surfaces, like Mercury, Earth, and Venus.

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  • 4. 

    Which planet has an axis of rotation parallel with its plane of orbit?

    • A.

      Pluto

    • B.

      Mercury

    • C.

      Neptune

    • D.

      Earth

    • E.

      Not Here

    Correct Answer
    E. Not Here
  • 5. 

    Which planet was demoted to a dwarf planet in 2006?

    • A.

      Mercury

    • B.

      Venus

    • C.

      Pluto

    • D.

      Saturn

    • E.

      Not Here

    Correct Answer
    C. Pluto
    Explanation
    Pluto was demoted to a dwarf planet in 2006. This decision was made by the International Astronomical Union (IAU) due to its small size and its orbit that crosses the path of Neptune. The reclassification sparked a debate among astronomers, as Pluto had been considered the ninth planet in our solar system for many years. However, the IAU's definition of a planet now includes three criteria, and Pluto does not meet the third criterion, which requires a planet to have cleared its orbit of other debris. Therefore, it was officially reclassified as a dwarf planet.

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