Student or Learner
As I know, unique things should be capitalized, but I can see a bunch of examples of " earth" for "Earth". As the Earth is only one, it should be capitalized, but why is it used as "earth" as well? Just due to a habituation? Moon also seems a same one.
ex)The earth revolves around the sun.
I must be the happiest person on earth.
Last edited by tedtmc; 27-Aug-2011 at 08:44.