Many of the Native American Dwellings at Mesa Verde and Elsewhere

question 18

Multiple Choice

Many of the Native American dwellings at Mesa Verde and elsewhere in the western United States are located under overhangs that form along the contact between permeable and impermeable rock layers. These overhangs (niches) were primarily created by what process?

• A) exfoliation
• B) salt-crystal growth
• C) hydrolysis
• D) frost wedging
• E) carbonic acid solution

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