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 follow a closed orbit around a star. B. It must be capable of supporting life. C. It must have minimal gravity forces. D. It must be shaped like an ellipsis.
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Answer:
The correct answer is (D) It must be shaped like an ellipse.
Explanation:
An object needs to follow certain criteria for being considered a planet.
1. It should have an independent orbit around the sun ( and not just any star).
2. It should have enough mass such that it's own gravity helps it assume a nearly round shape( ellipse as mentioned here).
3. It must dominate its own orbit.
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