Sagot :
Answer:
It consists of large number of bodies such as planets, comets, asteroids and meteors. The gravitational attraction between the Sun and these objects keeps them revolving around it. ... The eight planets in their order of distance from the Sun are: Mercury, Venus, Earth, Mars ,Jupiter, Saturn, Uranus and Neptune.
Explanation:
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Answer:
Because the International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet for it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially, Pluto meets all the criteria, it is in orbit around the Sun, and it has sufficient mass to assume hydrostatic equilibrium (a nearly round shape) except for one— it “has not cleared its neighboring region of other objects.”
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