: The smallest and shallowest, located around the North Pole. Layers of the Deep
: Surrounding Antarctica, it is the newest named ocean and known for its cold, harsh environment. Oceans
: Bordered by Africa, Asia, and Australia, it is a key region for marine biodiversity. : The smallest and shallowest, located around the North Pole
While often discussed as a single global system, geographers divide the ocean into five distinct basins based on size and location: : The smallest and shallowest