Explain how ocean currents originate and affect earth���s climates.

When the water blows on the surface of the ocean water it exerts presure ruslting in movement of the water with great froce in a particular direction. this movement of water is called ocean currents.
the currents which originate from equatorial regions are hot currents. they move towards the poles the currents which originates from the polar regions are cold currents and they move towards the equator warm currents makes a place warmer while cold currents makes a place cold the winds that blow over the warm currents are full of moisture and bring rainfall whileas the winds blowing over cold currents are dry and donot bring rainfall