The Grand Canyon: A Natural Wonder
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Questions and Answers

What is the oldest rock layer in the Grand Canyon called?

Vishnu schist

What is the youngest layer of rock in the Grand Canyon walls?

kibab limestone

How did the Colorado River contribute to the formation of the Grand Canyon?

Carving a Giant Canyon through the plateau's floor

What are some of the landmarks in the Grand Canyon created by the process of erosion?

<p>Rock Pinnacles near Temple Butte, Hindu Amphitheater, Tower of Ra</p> Signup and view all the answers

How many years did the story of the Grand Canyon stretch back according to scientists?

<p>more than 1 and A2 billion years</p> Signup and view all the answers

What is the oldest rock layer in the Grand Canyon called?

<p>Vishnu schist</p> Signup and view all the answers

What is the youngest layer of rock in the Grand Canyon walls?

<p>Kaibab limestone</p> Signup and view all the answers

What is the Grand Canyon's depth in some places?

<p>18 miles</p> Signup and view all the answers

What are some of the landmarks in the Grand Canyon created by erosion?

<p>Towering Rock Pinnacles, Hindu Amphitheater, Tower of Ra</p> Signup and view all the answers

What process helped expose the colorful layers below to create the Grand Canyon?

<p>Erosion</p> Signup and view all the answers

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