The Pacific Ocean is known for its deep trenches and remarkable marine biodiversity. It is the largest ocean, covering more than one-third of the Earth's surface. The ocean's Marianas Trench holds the record for the deepest point on Earth, indicating the ocean's great depths and diverse ecosystems. This biodiversity includes countless species of fish, mammals, and plant life, some of which are found nowhere else on Earth. The Pacific is also critical for global weather patterns and plays a significant role in marine trade and transportation.