Adam and Eve.
earth is the first planet humans have visited and the only one
No planets have been discovered using a microscope.
This is planet Earth, so one Earth day is one day on this planet.
The Planet Earth is ONE planet.
There are several theories about this, and one of them is by volcano eruption.
One - itself. Earth is a planet.
Earth is the planet we live on. Earth has one moon.
If man developed on this planet first and only, then the Earth or Tellus is the only planet inhabited by man. It might be disputed if our planet is the first one or the only one. Science does not know for certain but the odds with to days knowledge are against theories of man coming to earth from other planets.
In our solar system, there are a total of 8 planets. Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune. Earth is the third one out from the sun.
Earth is the third planet from the Sun. It is one of the terrestrial planets and has one satellite, the Moon.
earth
There is one moon revolving around planet Earth.