What causes ocean water to be colder at the poles than at the equator?

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.

How many square miles is the big island of hawaii

Which of the following east asian contries are a peninsula? a. china b. taiwan c. south korea d. mongolia