GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pluto is a planet.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Answer. The International Astronomical Union (IAU ) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one-it “has not cleared its neighboring region of other objects.”
Detailed explanation-2: -Pluto was once considered the ninth planet in the solar system. It was demoted in 2006.
Detailed explanation-3: -It’s smaller than any other planet–even smaller than Earth’s moon. It’s dense and rocky, like the terrestrial planets (Mercury, Venus, Earth and Mars). Pluto’s orbit is erratic. One of its moons, Charon, is about half Pluto’s size. 25-Aug-2006
There is 1 question to complete.