| A | B |
|---|
| three causes of surface currents | prevailing winds, rotation of Earth (Coriolis Effect), land masses |
| two types of currents | surface currents and density currents |
| two warm ocean currents | Gulf Stream and Japan Current (Kuroshio) |
| effects of ocean currents | affects the climate, and affects ocean navigation, and the transport of pollution |
| hydrosphere | the Earth's water layer |
| currents in the Northern Hemisphere turn in this direction | clockwise |
| Ocean currents in the Southern Hemisphere turn in this direction | counterclockwise |
| How does the Gulf Stream affect the United Kingdom? | the United Kingdom has a warmer climate |
| Warm currents start near what? | These currents begin near the equator |
| Where do cold ocean currents originate? | These currents begin in the Arctic or Antarctic areas |
| turbidity current | a current of water carrying large amounts of sediment |
| upwelling | The rising of deep water to the surface that occurs when winds move surface water |
| thermohaline currents | caused by the greater density of water with lower temperatures (cold) and higher salinity(salty) |
| Antarctic Bottom Water | deepest and densest water in ocean |
| North Atlantic Deep Water | forms in the North Atlantic Ocean and circulates above Antarctic Bottom Water |
