Oceanography: Deep Currents

The video explains how deep ocean currents are influenced by water density differences. Cold, salty water at the poles is denser and sinks, creating deep currents that flow towards the equator. This concept is demonstrated using a tank where cold, dense water moves beneath warmer, less dense water.

What is the primary path along which deep ocean currents flow?

• In the middle of the ocean

• Along the ocean bottom

• Along the ocean surface

• In circular patterns

What causes the generation of deep ocean currents?

• Earth's rotation

• Tidal forces

• Differences in water density

• Wind patterns

Why is the water at the poles denser than other ocean water?

• It is colder and less salty

• It is warmer and saltier

• It is warmer and less salty

• It is colder and saltier

In the tank demonstration, where does the cold blue water move?

• Along the bottom of the tank

• To the middle of the tank

• It stays still

• To the top of the tank

What is the ultimate destination of the cold dense water from the poles?

• The ocean surface

• The equator

• The middle of the ocean

• The ocean floor