Ocean current movement is mainly caused by 

• the magnetic field of Earth
• temperature differences in the water
• the gravitational pull from the sun
• runoff of fresh water from land

Warm ocean currents are found 

• near the poles
• near the horse latitudes
• deep under the ocean
• near the equator

Cold ocean currents are found

• near the poles

• near the horse latitudes

• deep under the ocean

• near the equator

Warm currents are usually found

• deep under the ocean
• at the surface
• at the poles
• in the southern hemisphere

Cold currents are usually found

• deep under the ocean

• at the surface

• at the poles

• in the southern hemisphere

Cold currents move

• from the poles to the equator
• from the horse latitudes to the doldrums
• in a circle in the doldrums
• from the equator to the poles

Warm currents move

• from the poles to the equator
• from the horse latitudes to the doldrums
• in a circle in the doldrums
• from the equator to the poles

Global ocean circulation begins with a surface current of 

• cooler water at the poles moving to equator
• cooler water at the equator moving to poles
• warmer water at poles moving to equator
• warmer water at equator moving to poles

Surface currents are primarily caused by

• gravity
• winds
• continental deflection
• upwellings

Due to the Coriolis Effect, currents south of the equator move in a

• clockwise direction
• north to south direction
• west to east direction
• counterclockwise direction