Ocean Currents (Leaving Cert Geography): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What percentage of ocean water is made up of surface currents?
What percentage of ocean water is made up of surface currents?
10%
What is the primary driving force behind surface ocean currents?
What is the primary driving force behind surface ocean currents?
Wind
What type of water is denser and sinks in the ocean?
What type of water is denser and sinks in the ocean?
Cold, salty water
What drives deep-water ocean currents?
What drives deep-water ocean currents?
Water density differences
How long does it take to complete one full cycle of the global ocean conveyor belt?
How long does it take to complete one full cycle of the global ocean conveyor belt?
Hundreds to thousands of years
Where does upwelling mainly occur?
Where does upwelling mainly occur?
Pacific and Indian Oceans
In which direction does the Coriolis effect deflect currents in the northern hemisphere?
In which direction does the Coriolis effect deflect currents in the northern hemisphere?
To the right
What climate impact does the AMOC have on Western Europe?
What climate impact does the AMOC have on Western Europe?
Keeps it warmer
Where do warm ocean currents originate?
Where do warm ocean currents originate?
Near the equator
In which direction do gyres rotate in the northern hemisphere?
In which direction do gyres rotate in the northern hemisphere?
Clockwise
How many major ocean gyres are there?
How many major ocean gyres are there?
Five
What is the maximum speed of the Gulf Stream?
What is the maximum speed of the Gulf Stream?
Up to 2.5 metres per second