Yes, the Moon is a natural one, the only one, and there are hundreds of artificial ones as well.
These are known as moons. Natural satellites that are in orbit around a larger planet.
If, by plants, you mean planet's, then the answer is Jupiter. If not, I haven't the faintest idea.
They are just left a certain distance from earth and Satellites revolve around earth due to Gravitational force
No, Earth is a planet orbiting the Sun.
Earth or any planet where life is possible
I suggest you check your question. Earth is a planet. Earth does not 'contain' any planets; therefore the only answer to your question is....earth.
The moon is Earth's natural satellite and is not next to any other planet in our solar system. It orbits around Earth.
Earth is the only planet known to support any kind of life.
Yes..because without planet earth do any thing life exist
Earth
No, in recent history no human has set foot on any planet other than earth !
there is a moon for every planet