GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements about dwarf planets is correct?
A
The International Astronomical Union (IAU) currently recognizes five dwarf planets:Ceres, Pluto, Haumea, Makemake and Eris.
B
A dwarf planet is a planetary-mass object that does not dominate its region of space and is not a satellite.
C
Astronomers discovered Ceres in 1801.
D
It is in direct orbit of its star and is massive enough to be plastic.
Explanation: 

Detailed explanation-1: -According to the International Astronomical Union, which sets definitions for planetary science, a dwarf planet is a celestial body that-orbits the sun, has enough mass to assume a nearly round shape, has not cleared the neighborhood around its orbit and is not a moon.

Detailed explanation-2: -being in orbit around the Sun; not being a satellite of a planet; having a mostly round shape due to its own gravity; and. having not cleared its neighbouring region of debris. 26-Jan-2021

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