Here's why:
* Longitude lines run north to south. They are imaginary circles that measure distance east or west of the Prime Meridian (0 degrees longitude).
* The Pacific Ocean is the largest ocean on Earth. It stretches from the Arctic in the north to the Southern Ocean in the south, covering a vast area that spans almost all longitude lines.
Therefore, any longitude line you can think of, from 1 degree east to 179 degrees east or 1 degree west to 179 degrees west, will intersect the Pacific Ocean at some point.