An ocean is a vast body of saltwater that covers approximately 71% of Earth’s surface and contains more than 97% of the planet’s water. Oceans are essential for regulating climate, supporting biodiversity, and sustaining human economies. They form the major component of the hydrosphere and are divided into five primary regions: Pacific, Atlantic, Indian, Southern, […]
The Arctic Ocean is the smallest, shallowest, and coldest of the world’s five major oceans. Located entirely in the Northern Hemisphere and centered on the North Pole 🧭, it is surrounded by Eurasia and North America. Despite being classified as an ocean, it is sometimes considered a large marginal sea due to its semi-enclosed geography.
The Atlantic Ocean is the second-largest ocean on Earth, covering approximately 106 million km² (41 million mi²). It separates the continents of North and South America from Europe and Africa, serving as a critical conduit for global trade, climate regulation, and marine biodiversity. Geography and Location 🗺️ Oceanography 🌊 History and Exploration 🛶 Economy and