When did the Ouachita system change sedimentation styles from those typical of a passive margin to an active margin?
A)Late Paleozoic
B)Early Pennsylvanian
C)Late Permian
D)late Devonian
E)Early Mississippian
Question 2
According to the Milankovitch theory, variations in Earth's orbit and axial tilt can trigger long-term climatic changes and prompt the start and end of ice ages.
Indicate whether the statement is true or false