GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In order for a celestial object to be considered a planet it must
A
Orbit a star
B
Be spherical due to its gravity
C
Have cleared its orbital path around the star it revolves
D
All of these options
Explanation: 

Detailed explanation-1: -It must orbit a star (in our cosmic neighborhood, the Sun). It must be big enough to have enough gravity to force it into a spherical shape. It must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the Sun.

Detailed explanation-2: -Our solar system is made up of a star, eight planets, and countless smaller bodies such as dwarf planets, asteroids, and comets.

Detailed explanation-3: -is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and. has “cleared the neighbourhood” around its orbit.

There is 1 question to complete.