Oceans ⚡

: The second largest, stretching between the Americas and Europe/Africa.

The ocean is structured into vertical zones defined by depth and light penetration: Ocean habitat | National Geographic Kids Oceans

While often discussed as a single global system, geographers divide the ocean into five distinct basins based on size and location: : The second largest, stretching between the Americas

: Bordered by Africa, Asia, and Australia, it is a key region for marine biodiversity. : The second largest

: Surrounding Antarctica, it is the newest named ocean and known for its cold, harsh environment.