Because the inner planets are closer to the sun than the outer planets.
None of the four inner planets have inner rings, while each of the four outer gas planets have a ring system.
The inner system refers to all planets in our solar system between the sun and the asteroid. The planets are in this order mercury, venus, earth, and mars. The outer solar system is the planets after the asteroid belt like Jupiter, Saturn, uranus, neptune, and Pluto.
The asteroid belt is generally regarded as the boundary between the inner solar system and the outer solar system.
The gassy planets are much more massive than the inner planets, which means that have stronger more far-reaching gravitational fields. That in turn makes them more likely to capture odd collections of rock in the solar system.
Jupiter is the first of the outer planets. The asteroid belt separates the inner and outer planets.
Mercury, Venus, Earth and Mars are the inner planets
The inner planets of the solar system is: Mercury, Venus, Earth, and Mars.
None of the four inner planets have inner rings, while each of the four outer gas planets have a ring system.
the rocky planets
most of inner planets
There are four inner planets, that is Mercury, Venus, Earth, and Mars.
The inner planets
The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. The inner planets all have a clear solid surface, unlike gaseous planets. The inner planets do not have a ring system. The inner planets are of similar densities.
inner planets and gas giants
Because the inner planets are made of rock but the outer planets are made of gas(except for Pluto).
Not in our solar system. The inner planets are smaller.
Inner planets have a radius orbit shorter than the orbit of Jupiter. Outer planets are all the other planets of the solar system.