Because the wanted People to live. :)
so we can live
Planets do not make up the Earth's crust.
Planets do not make up the Earth's crust.
The outer planets.
This question doesn't make sense to me.
7 major planets with about 3 dwarf planets.
No, but they will break up into small parts to make other planets
Planets.
No. The stars make their own light, but the planets only relect light from the sun.
There are four gas planets. These are the four outer planets, which are Jupiter, Saturn, Uranus, and Neptune.
In general, planets don't make their own light. Rather, they reflect the light of the sun. It is possible to see lightning in the atmospheres of some planets, but that probably doesn't count.
That doesn't make sense. There are stars, and there are planets. If you mean "planets around stars, other than the Sun", those are usually called "extrasolar planets" or "exoplanets".
None.