Coastal plain estuaries were formed when:

Question

Quizplus · Accepted Answer

Coastal plain estuaries were formed when the ocean invaded lowlands and river mouths, resulting in a mixing of saltwater from the ocean and freshwater from inland rivers. This process created unique and diverse ecosystems that are important for both commercial and recreational purposes. Sand bars (Option A) can also form along the coast and contribute to the formation of estuaries, but this is not the primary process by which they are created. The other options (C, D, and E) are not correct explanations for the formation of estuaries.

Coastal Plain Estuaries Were Formed When