Earth is special because it helps keep the gravity stable and it is this only planet with life that we know of.
The Earth is part of the Solar System, so they are of the same age.
There is soil on Earth, and Earth is part of the solar system, so you could say that soil is part of the solar system.
It's the only planet (that we know of) that produces things we need to live (water, plant, other animals.,etc)
The Sun is at the center of the Solar System. the SUN is the centre of our solar system.
In our Solar System - Neptune.Outside our Solar System (so far....) OGLE-2005-BLG-390Lb(at about 21,500 light years)
'Geo' comes from the Greek for Earth e.g. Geometry means measuring the Earth; Geology means reading the Earth (rocks), Geography means writing about the Earth. So a geocentric solar system has Earth at the centre.
Jupiter because it is so massive.
So far - Earth
All but the Earth. It is inhabitable but the others are not so.
That's the age of our Solar System, so you can expect all the planets in our Solar System to have approximately that age.
Some objects orbit the planets, like our Moon orbits Earth, but all of those planets and Earth and things like comets all orbit the Sun. So yes, you can say that everything in the solar system is orbiting the sun. Our system is based on the Sun, which is know as the Sol, hence Solar, and so everything orbits the sun. That is why we call it a solar system.
We are in the Solar system and a part of it. It's like asking "How far is France from Europe?" Yes... there is no way to judge that as mercury, venus, earth, mars, jup[iter, saturn, uranus and neptune are the planets located in the solar system. you could reference the distance from the earth to the sun though.