Select all that is/are true regarding large-scale water movement in the ocean.

select one or more:

a. the placement of the continents influences the large-scale flow of ocean currents

b. the surface of the ocean is perfectly flat (besides waves) because the water flow is moving around to remove any build-up of water that would occur because of wind

c. the coriolis effect, an important component in setting up large-scale surface flow, is responsible for deflecting water 90 degrees to the right of the direction of the wind in the northern and southern hemispheres.

d. coriolis deflection and drag from wind generate a spiral of water that begins at the surface of the ocean and continues to spiral with depth. this water movement leads to a net water movement at an angle of 90 degrees to the direction of the wind.

e. coriolis deflection counterbalances pressure gradients to cause the formation of surface ocean gyres