What is the value of x in the triangle?

The large connected urbane area from boston to washington, d.c. is often referred to as

How do ocean currents affect temperature? check all that apply. they carry cold water from the poles to the equator and cool air over land. they flow north and then south below the equator. they flow south and then north above the equator. they move warm water from the equator to the poles and heat air over land. they move east to west and create prevailing winds. they move west to east and create seasonal winds.

What is the name of the ocean current that affects the british isles? how does it influence their climate?