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15 August, 03:25

Suppose scientists believe that they've discovered a new planet. Which of the following must be true for the object they've found to qualify as a planet?

A. It must be shaped like an ellipsis.

B. It must have minimal gravity forces.

C. It must be capable of supporting life.

D. It must follow a closed orbit around a star.

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Answers (2)
  1. 15 August, 03:38
    0
    The correct answer will be option-D.

    Explanation:

    According to the International Astronomical Union, a planet must satisfy three criteria to be a planet:

    1. It must be an independent object which orbits around a star (in our cosmos-Sun).

    2. It must have the mass to have its own gravity which forces it to have

    a spherical shape

    3. It must be large enough to dominate its orbit as its gravity should clear away any other objects.

    Thus, option-D is the correct answer.
  2. 15 August, 03:41
    0
    D. It must follow a closed orbit around a star
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