When did the horizontal,layered sedimentary rocks in the Grand Canyon form?
A)during the Cenozoic
B)during the Paleozoic
C)during the Mesozoic
D)during the Precambrian

Question

Quizplus · Accepted Answer

The horizontal, layered sedimentary rocks in the Grand Canyon primarily formed during the Paleozoic era, which spans from about 541 to 252 million years ago. This era is known for the development and diversification of early life forms, including the formation of extensive marine and terrestrial sedimentary rock layers.

When Did the Horizontal,layered Sedimentary Rocks in the Grand Canyon