Which of the following regions was once covered by the ocean and currently makes up approximately 60% of Georgia’s land?

a-the Appalachian mountains <--
b-the coastal plain
c-the piedmont
d-the blue ridge mountains

To determine which region was once covered by the ocean and currently makes up approximately 60% of Georgia's land, you can analyze each option and eliminate the ones that do not fit the description.

a) The Appalachian Mountains: The Appalachian Mountains are located in the northeastern part of Georgia and consist of rugged peaks and valleys. This region was not covered by the ocean and does not make up a significant portion of the state's land.

b) The Coastal Plain: The Coastal Plain is a low-lying region along Georgia's coast. This region was indeed covered by the ocean in the past and is relatively flat, making up a significant portion of Georgia's land. It is a potential contender.

c) The Piedmont: The Piedmont is a hilly region that lies between the Coastal Plain and the Appalachian Mountains. While it is a prominent part of Georgia's geography, it was not covered by the ocean and thus does not meet the requirements.

d) The Blue Ridge Mountains: The Blue Ridge Mountains are located in the northern part of Georgia. Like the Appalachian Mountains, this region was not covered by the ocean.

Based on this analysis, the option that fits the description of being once covered by the ocean and currently making up approximately 60% of Georgia's land is b) the Coastal Plain.