The Pacific Ocean is considered "number 1" because it is the largest ocean on Earth.
The Pacific Ocean dwarfs all other oceans in size, covering more than 30% of the Earth's surface. This vast body of water represents almost half of all the water found on our planet. Its immense size and importance to global climate patterns, biodiversity, and maritime activities solidify its position as the most significant ocean.
Essentially, when ranking oceans by size, the Pacific Ocean takes the top spot.
