Characteristics of Oceans (Leaving Cert Geography): Quizzes
📚Quizzes
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14 questions from this quiz
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Practise the questions
14 questions from this quiz
What percentage of Earth's surface is covered by oceans?
What percentage of Earth's surface is covered by oceans?
71%
What percentage of the planet's water do oceans contain?
What percentage of the planet's water do oceans contain?
97%
In what unit is salinity expressed?
In what unit is salinity expressed?
Parts per thousand (ppt)
If seawater has 35 ppt salinity, how many grams of salt are in 1 kg of seawater?
If seawater has 35 ppt salinity, how many grams of salt are in 1 kg of seawater?
35 grams
How does high evaporation affect ocean salinity?
How does high evaporation affect ocean salinity?
Increases salinity
What happens to the salinity of remaining seawater when sea ice forms?
What happens to the salinity of remaining seawater when sea ice forms?
It increases
Which ocean is generally saltier?
Which ocean is generally saltier?
Atlantic Ocean
What is the primary heat source for oceans?
What is the primary heat source for oceans?
Solar radiation
What is the thermocline?
What is the thermocline?
Rapid temperature decrease with depth
Where does the Gulf Stream bring warm water to?
Where does the Gulf Stream bring warm water to?
North Atlantic
By how much does pressure increase for every 10 metres of ocean depth?
By how much does pressure increase for every 10 metres of ocean depth?
1 atmosphere
Which factor does NOT increase ocean density?
Which factor does NOT increase ocean density?
Warmer temperature
What drives thermohaline circulation?
What drives thermohaline circulation?
Density differences
What is the depth range of the sunlight (Epipelagic) zone?
What is the depth range of the sunlight (Epipelagic) zone?
Surface to 200 metres