Scientists agree that the great crevice in the Earth’s surface was cut away by the flow of the Colorado River. However one question is still debated: when exactly did this erosion happen to form the Grand Canyon?
Read the transcript at https://www.quickanddirtytips.com/education/science/how-and-when-did-the-grand-canyon-form
Check out all the Quick and Dirty Tips shows:
www.quickanddirtytips.com/podcasts
FOLLOW EVERYDAY EINSTEIN
Facebook: https://www.facebook.com/qdteinstein
Twitter: https://twitter.com/qdteinstein