me
China
The United States has the most websites, with millions of domains registered in the country.
Most cruise lines, including Carnival, have their ships registered under "flags of convenience". That typically means they are registered in Panama, Bermuda, the Bahamas, or some other country that does not tax the operations of international cruise ship operations.
the country of china was the ones who ships the most amount of wepons to the united states
In most cases, one would think so. In addition to overall so-called "Maritime Law" which all nations subscribe to, and are supposed to uphold, individual ships are separate little floating islands of whatever country the ship is registered in and what country's flag it flies. That nations law prevails aboard those ships.
England have the most registered players with 2.5 million
Virgin islands
england
All of Royal Caribbean International's ships are registered in Nassau Bahamas
As of now, China builds the most ships each year. The country has a significant shipbuilding industry, with multiple shipyards producing various types of vessels.
Most countries have some rivers on which steam ships were used. You need to state a specific country.