Motor oil viscosity is tested at different temperatures to see how effective it is at providing engine lubrication. As the temperature increases, what happens to the viscosity of the oil?

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe