General Knowledge (GK) Reading Practice Test

The Pacific Ocean holds the title of the largest ocean on Earth, covering more area than all of the landmasses combined. It spans approximately 63 million square miles (165 million square kilometers) and reaches from the Arctic in the north to the Southern Ocean in the south. The vastness of the Pacific Ocean is significant not only in terms of size but also in its depth, with the Mariana Trench being the deepest part of any ocean. In contrast, the Atlantic Ocean, while substantial in its own right, is the second-largest ocean, covering about 41 million square miles (106 million square kilometers). The Indian Ocean, the third-largest, covers about 27 million square miles (70 million square kilometers), and the Arctic Ocean, though important for its ecological significance, is the smallest of the four major oceans, covering roughly 5.4 million square miles (14 million square kilometers). Thus, the Pacific Ocean's immense size and volume establish it as the largest ocean on Earth.