Temperature Differences.
Convection current is a stream of fluid propelled by thermal convection. Convection is mostly around gas and liquid
The Gulf Stream is a massive, warm current that flows northward from the Gulf of Mexico, through the Straits of Florida. The Laborador Current is a cold, southward flowing current that runs closer to the coasts of Canada and the USA.
The stream of water which flows like a river through the ocean is a current. The Gulf Stream is the most significant such current which flows from the tropics to the northern latitudes.
Surface current
It is a surface current.(:
surface current
stream deposition
A small stream in a river is called a current.
the Gulf Stream
You're probably referring to the term "slipstream", which is sometimes used synonymously with "prop wash".
A current
electric current