Which ocean lies on the east coast of the United States?

The Atlantic Ocean lies on the east coast of the United States and is significant for both geographical and historical reasons. It serves as a major waterway that has facilitated trade, exploration, and cultural exchange between the U.S. and other countries, especially those in Europe and Africa. The coastline along the Atlantic Ocean features numerous states, including Florida, New York, and Maine, which are known for their beaches, ports, and maritime activities.

Understanding the geographical layout is crucial, as the Pacific Ocean is located on the west coast, while the Indian Ocean and Arctic Ocean are far away from the U.S. mainland, positioning them as irrelevant options for this specific question about the east coast.