The Atlantic Ocean separates Africa from the Americas. This vast body of water extends from the Arctic Ocean in the north to the Southern Ocean in the south. It is the second-largest ocean in the world, covering about 20% of the Earth's surface. The Atlantic Ocean has played a significant role in trade and exploration throughout history, facilitating the movement of people and goods between continents since ancient times. The ocean is also known for its diverse ecosystems, including coral reefs and deep-sea trenches, and is crucial for marine biodiversity.