Answer:
The outer planets are also called gas giants; The outer planets have a high gravity due to their large size; The outer planets formed where temperatures were cooler
Explanation:
All planets in our solar system can be divided into two groups; inner and outer planets. Border between these two groups is the asteroid belt. So, all the planets further from the asteroid belt ( Jupiter, Saturn, Uranus and Saturn) are called outer planets. They all have some characteristics in common:
- they are huge in size, several times bigger than the Earth, and since they are mostly composed of gases they are referred to as "gas giants"
- since the gravity of a planet is directly proportional to its size, these planets have higher gravity, which is why outer planets have multiple moons and rings
- since they are very far from the heat source, the Sun, they were formed in a cold part of space and their temperature is lower
Although Pluto also is further from the asteroid belt, it does not fulfill all the criteria to be a planet; officially, its status is a dwarf planet.
