What Is So Unusual About Pluto's Orbit

question 138

Multiple Choice

What is so unusual about Pluto's orbit?

• A) It lies exactly on the ecliptic.
• B) It has the lowest eccentricity of any planet's orbit.
• C) Its orbital period is exactly twice that of Neptune's.
• D) It has an unexpectedly short orbital period.
• E) It is more inclined to the ecliptic than any of the eight planets.

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