The largest ocean on the planet is the Pacific Ocean. Covering more than 63 million square miles, it accounts for over one-third of the Earth's surface water. This vast ocean is known for its deep trenches, diverse ecosystems, and numerous islands. The Mariana Trench, the deepest point on Earth, is located here. The Pacific Ocean also plays a significant role in global weather patterns and is home to a rich variety of marine life, making it crucial for both environmental balance and human economies.