Question

In which surface of the planet is ful of carbon

Answer 1

according to recent studies, scientists have discovered a planet which has more carbon than oxygen. but it is a theoretical type of planet. it can even be a moon

Answer 2

my dear,,
there is no substance in world which os composed of one type.
And since carbon is unstable and tatravalence it is everyware in persent
but not full of carbon
but maximum carbon in world is present in co2