What type of rock forms layers that can be seen in heavily weathered regions such as the grand canyon?

a. igneous
b. basaltic
c. metamorphic
d. sedimentary

Answer;

D. Sedimentary

Explanation;The Grand Canyon was formed by the processes of weathering and erosion. The Colorado River and its tributaries formed the canyon as the Colorado Plateau was being geologically uplifted. The formation of the Grand Canyon was accomplished by the constant erosion of the rock by the Colorado River over some 17 million years.The three main types of sedimentary rocks at Grand Canyon are sandstone, shale, and limestone.