Multiple Choice
Why is the Grand Canyon an interesting landmark?
A) It is the smallest canyon in the world.
B) It was created through a meteorite impact.
C) Thousands of dinosaur fossils have been found there.
D) It is a gorge that was eroded by a river about 1.7 billion years old and is about 1700 m deep.
Correct Answer:

Verified
Correct Answer:
Verified
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