Question

the Grand Canyon looks now. But millions of years ago, this region was completely buried under Earth’s surface. The change that happened over the years was caused by .

Answer 1

Erosion and carving from the river traveling from the marble canyon to the kanab canyon

Answer 2

The answer to the question: The change that happened over the years, on the Grand Canyon, to make it look like it does today, was caused by:___, would be: the erosion brought on by the Colorado River.

Step-by-step explanation:

Although noy yet absolutely confirmed, the consensus of scientists is that about 5 to 6 million years ago the Colorado River began its work on the rock and the erosion caused by the constant passing of the water opened up the Canyon and changed the landscape forever. Today, the river continues passing and altering the landscape of this great geological landmark so that the Canyon that we see today may not be entirely as the one that there was about a 100 years ago, and may not be the same, in the future.