The Atlantic Ocean is the second-largest ocean in the world, covering about 41 million square miles. It separates North America and South America from Europe and Africa. The ocean is known for its rich marine biodiversity and plays a crucial role in global weather patterns. The Atlantic Ocean is also significant for international trade, with major shipping routes connecting various continents. It contains important features like the Mid-Atlantic Ridge, an underwater mountain range, and the Sargasso Sea, known for its unique floating seaweed.