It depends. If the river is in the mountains or near the Poles than it's probably colder but if the ocean is like the arctic ocean or something like that then that's probably colder
The coldest ocean is the Arctic Ocean. It is by the artic.
It gets colder because the Sunlight heats the ocean and the deeper you go, the less penetrating the Sunlight is, therefore making the ocean water colder.
Atlantic is colder becauseit is near the Arctic ocean more than the pacific is .
lack of sunlight
The Pacific Ocean.
There is no such thing as a "river ocean".
The Irtysh River is the main tributary of the Ob River, which flows into the Arctic Ocean. The Irtysh River does not connect to an ocean.
The Congo river, now known as the Zaire River, flows into the Atlantic Ocean.
which sea or ocean does the river yensei flow into
the deeper you go, the colder the ocean water gets
gets colder
== == The Amazon River empties into the Atlantic Ocean.