If water freezes at 32° and boils at 212°, the major temperature scale being used is

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.

11. plate divergence is best described as a/an process. a. orogenic b. epeirogenic c. isostatic d. taphrogenic

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."