The video explores ocean currents, explaining their causes and effects. It covers tidal currents, driven by the gravitational pull of the moon and sun, and surface currents, influenced by global wind patterns. The Gulf Stream and Kuroshio current are highlighted as major surface currents. Additionally, the video introduces thermohaline circulation, which involves the movement of water due to changes in temperature and salinity, affecting global climate through the great ocean conveyor belt.

What causes the ocean to never stand still, even in a quiet marina?

• The temperature of the water

• The gravitational pull of the moon and sun

• The rotation of the Earth

• The presence of marine life

What is a flood current?

• Water moving inland as the tide rises

• Water moving seaward as the tide recedes

• A current caused by temperature changes

• A current caused by wind

Which of the following is a prominent surface ocean current?

• The Nile River

• The Mississippi River

• The Gulf Stream

• The Amazon River

What is the Kuroshio current known for?

• Traveling between 25 to 75 meters a day

• Being located off the west coast of Japan

• Being the smallest ocean current

• Having a volume equal to 600 large rivers

What is the primary driver of surface ocean currents?

• The Earth's rotation

• The wind

• The gravitational pull of the moon

• The temperature of the water

What does 'thermohaline' refer to in ocean circulation?

• Wind and tides

• Heat and salinity

• Temperature and pressure

• Density and volume

How does cold, salty water behave in the ocean?

• It rises to the surface

• It remains at the surface

• It sinks to the bottom

• It evaporates quickly

What is the 'great ocean conveyor belt'?

• A method of transporting goods across oceans

• A system of ocean currents driven by wind

• A global circulation pattern affecting climate

• A series of tidal waves

How long does it take for water to move through the entire ocean conveyor belt?

• A thousand years

• A hundred years

• A century

• A decade

Which factors contribute to the motion in the ocean?

• Only the gravitational pull of the moon

• Tides, wind, heat, and salinity

• Only heat and salinity

• Only wind and tides