Earth is covert by 71 % of water and it is as the distance needed to by liquid and then it is possibl to life to be develop. It's the only planet of the solar sytem wher we can find solid, liquid or gaseous water.
225 millions years ago, Earth was form by only one continent. Is name is pangea.
Earth atmosphere is principaly compose of azote (77 %), oxygen (21 %), argon, carbonic gas, helium and many other gas. It's life apparition who develop oxygen on earth atmosphere. Atmosphere is acting like a shield again nocuous sun rays and keeping life.
On geological level, Earth is very active. The continents are dispose on large plate who slowly go on surface of the planet. 200 millions years ago, continents broke from unique continental mass. Studying continental drift and geological conditions on others planets help specialists to understand and predict earthquake and volcanic eruptions.
The Moon is the principal cause of tide. Gravity force of the Moon attrack mostly water in is side then water on center of earthand this attraction on earth center is most attrative then water on the opposite side of the Moon. This make an outgrowth of the water on both side of the earth. By this phenomen, we have two tides a day.
| Maximal distance from the Sun (million of kilometers) | |
| Minimum distance from the Sun (million of kilometers) | |
| Medium distance from the Sun (million de kilometers) | |
| Medium distance from the Sun (UA) (Earth=1) | |
| Equator diameter (kilometers) | |
| Revolution | |
| West to east rotation | |
| Retrograde rotation | |
| Medium orbital velocity (kilometers per second) | |
| Axies inclinaison (Degres) | |
| Orbital inclinaison (According to ecliptic) | |
| Extrem temperature on surface (Celsius degres) | + 58 |
| Atmosphere | Azote Oxygen Argon |
| Visibility | |
| Color | |
| Know satellite | |
| Rings | |
| Volume (Earth = 1) | |
| Mass (billion of billion of tons) | |
| Mass (Earth = 1) | |
| Density (Water = 1) | |
| Gravity on surface (Earth = 1) | |
| Mythology | |
| Type | |
| Discovery | |
| Equatorial liberation velocity (km/s) | |
| Principal constituant of the atmosphere | N2 |