Question

Why did 8 planet different from other ​

Answer 1

Answer:

Planets come in different sizes and so have different gravity levels. Mars is smaller than Earth so has less gravity. On Mars you weigh less and would be able to carry more. Smaller planets are also less likely to have an atmosphere, as there may not be enough gravity to hold the gases to the surface.

Answer 2

Planets have different properties because they are different distances away from the sun, are different sizes, and are made up of different stuff from the earth. Very tiny planets do not have enough gravitational field to keep much of an atmosphere in. ... The earth too changes from time to time.