Question

1. the atlantic coastal plain bedrock is from what age?

era =
period =
mya =

Explanation:

The bedrock of the Atlantic Coastal Plain formed during the Mesozoic and Cenozoic eras, with the dominant foundational bedrock dating to the Cretaceous period, which falls within the Mesozoic. The Cretaceous period occurred approximately 145 to 66 million years ago (MYA).

Answer:

Era = Mesozoic
Period = Cretaceous
MYA = 145 to 66