Question

Base your answers to questions 80 through 82 on the generalized cross section of the Grand Canyon

represented below and on your knowledge of Earth science. Some rock layers have been labeled. The rock layers
have not been overturned.

State the approximate age of the Redwall limestone, in million years. [1]

Answer 1

After viewing and researching the picture given above, the approximate age of the Redwall limestone in million years is from 318 to 359 million years.