The Gulf Stream.
The sun!
I normally don't answer homework questions, but I'll bite on this one. "When rain warms the ocean" is in itself an incomplete sentence. The entire thing is a dependent clause. As constructed, it has no independent clause. However, it could be altered to read "Rain warms the ocean". In that case, the entire sentence is the independent clause.
The type of surface that warms up the slowest is the "ocean" surface.
The North Atlantic Drift is an ocean current that warms France, Ireland and the UK.
Gulf stream
Atlantic
saltier
The gulf stream
Probably because we're surrounded by water. Water has varying effects on prevailing weather. Additionally, most of our weather comes across the Atlantic ocean - and is usually the remnants of caribbean hurricanes.
Yes, solar radiation warms the surface of the ocean. Warmth rises from the ocean in the form of infrared radiation.
Sunlight warms the waters on the ocean surface. Some heat energy is transferred to cooler waters through convection.
The Gulf Stream.