28 janv. 2009 - Earth
Description:
1 moonterrestrial planet
1 day=24 hours
1 year=365 days
Earth's atmosphere is 78% nitrogen 21% oxygen and 1% else
The atmosphere is a protective shield
Ajouté au bande de temps:
Date:
28 janv. 2009
Maintenaint
~ Il y a 15 ans
