Usually, much of the piedmont is underlain by an erosional bedrock surface called a ________.

Name: Usually, much of the piedmont is underlain by an erosional bedrock surface called a ________.
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A pediment is a gently sloping erosional bedrock surface that forms at the base of a mountain range or steep cliff. It is a common feature of piedmont regions. The other choices (bench, inselberg, terrace, gibber plain) are not typically associated with piedmont regions.

Usually, Much of the Piedmont Is Underlain by an Erosional