Nearly 100 percent of international data crosses the ocean via undersea cables. They're only about three inches in diameter, but they span entire oceans. Plows dig grooves in the sandy ocean floor, lay the cables in, and the current buries them; some are buried as deep as Mount Everest is high.
This seems insane—it is insane—but we've actually been using ocean-spanning cables since 1866, when the first successful trans-Atlantic telegraph line was laid. In 1956, we started making international phone calls via deep sea cables. Today, there's a system of nearly 300 undersea cables that transport our data.
Oh, and to answer your potential followup question: Even if you're using wifi or phone data, it eventually reaches a physical cable and, if need be, sprints across the ocean.
which ocean did columbus cross after he left spain
Indian ocean you cross the Indian ocean to get to the other side
the Indian ocean!
You would cross the Atlantic Ocean.
From Britain I would cross the Atlantic Ocean.
You would cross the Indian Ocean.
You would have to cross the Pacific Ocean from California to Japan.
You have to cross the Indian Ocean to travel from eastern Africa to India, but you can travel on land.
The nearest ocean to Ireland is the Atlantic Ocean. Depending on where in the world you are coming from, you may have to cross it.
The Pacific Ocean.
You cross the northern part of the Atlantic ocean.
The Atlantic ocean