Where does the name china come from?

What is the primary justification of the hypothesis that the early earth environment was void of oxygen? ( 2 points) data showing the concentrations of gases extracted from rocks fossil evidence regarding the origin of eukaryotes generally accepted atmospheric conditions molecular evidence based on evolutionary traits.

Why don't all places on earth receive the same amount of direct sunlight at the same place?

The 5th term in a series of even number that begin 3x