What is the biggest ocean, river, lake, and country in the world?

The pacific ocean is as big as all of the other oceans combined. The pacific Ocean is the biggest.

The Nile River is the world's longest river. The Nile River begins in Uganda and flows 4,200 miles ( 6,700 km ) north passing through Sudan and Egypt.

The largest lake in the world is the Caspian Sea. The Caspian Sea is located west of Uzbekistan.

Russia is the world's largest country. Russia is governed from Moscow.

answer; i believe that the correct answer is (the explosion of a nearby star(supernova);

true because they haven't completely settled the case

explanation: