Who Here Wants Donald Trump Back?!

As our current atmosphere formed, the concentrations of various atmospheric gases fluctuated. match each gas with the explanation that best describes how its proportion changed during the evolution of the atmosphere.

How many soultions does the system of equations have y= -6x + 330x + 5y = 15a.one b.twoc.infinity manyd.none

The reign of terror describes which period during the french revolution? a. when napoleon led a coup d'etat and seized power b. when the republic executed thousands of citizens c. when france was still a monarchy under king louis xvi d. when other european kingdoms attacked france