Which sentence about an ocean current is correct? O Surface currents move vertically through the water.
O Upwelling moves water horizontally.
O Surface currents are caused by differences in water density.
O Upwelling is caused by winds that blow on the ocean's surface.

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!