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Oceanography || All Answers Are Correct 100%.
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  • Course
  • Oceanography
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  • Oceanography

How much of the Earth is covered in Water? correct answers 70% Where is most of the water located on Earth? correct answers Oceans What is the largest body of water on Earth? correct answers Oceans, interconnected to each other What are seas surrounded by? correct answers Smaller bodies of...

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  • August 16, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • how much of the earth is covered in water

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  • Oceanography
  • Oceanography

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Oceanography || All Answers Are Correct 100%.
How much of the Earth is covered in Water? correct answers 70%

Where is most of the water located on Earth? correct answers Oceans

What is the largest body of water on Earth? correct answers Oceans, interconnected to each other

What are seas surrounded by? correct answers Smaller bodies of water surrounded by Land

How is salinity in water determined/measured? correct answers The amount of dissolved solids
in water, measured in g/1000 with an average of 3.3-3.6%

What elements are in saltwater? correct answers Halite (sodium & chloride) 85% and tiny trace
elements of phosphorous and gold

What factors affect salinity? correct answers Evaporation, precipitation, currents, temperature,
coastal run-off/ice melt

When it rains, does salinity increase or decrease? correct answers salinity decreases due to
dilution

When there is a lot of evaporation (like in hot conditions, or in shallow water) does salinity
increase or decrease? correct answers Salinity increases because the salt is more concentrated

What processes affect the gas exchange in the water? correct answers Interaction with the
atmosphere through evaporation, as well as photosynthesis and respiration of marine plants and
animals (giving off/breathing in CO2 and Oxygen and nitrogen),

How long can the ocean store carbon? correct answers Thousands of years

What does it mean when we say the ocean is a carbon sink? correct answers It is a natural or
artificial reservoir that accumulates and stores some carbon-containing chemical compound for
an indefinite period

What affects the temperatures in the ocean? correct answers Depth (shallow or deep water) and
location (near the equator or poles)

What part of the ocean is most affected by solar energy (the sun)? correct answers The surface
where the sun shines directly on the water

What temp are polar waters? correct answers -1.9 deg Celsius

What is pack ice also known as? correct answers Insulation. The sea ice layer restricts wind and
wave action near coastlines, lessening coastal erosion and protecting ice shelves. Sea ice also

, creates an insulating cap across the ocean surface, which reduces evaporation and heat loss to the
atmosphere.

How does sea ice protect coastlines? correct answers Protects against erosion

How does sea ice protect the ocean? correct answers reduces evaporation of sea water and heat
loss

What is the temperature difference in a thermocline? correct answers Warmer water is at surface,
cooler water is deeper

In a thermocline, does temperature drop or rise the deeper you go? correct answers As you get
deeper, the temperature drops significantly (gets colder)

In a thermocline, where is the water most dense? correct answers Most dense in colder layers of
water

In a thermocline where is water most saline? correct answers Most saline in the denser, deeper,
colder layers of water

Does colder, denser, saltier water sink or rise to the surface? correct answers Colder, denser,
saltier water sinks

What water rises to the surface? correct answers Warmer, less dense, less saline water rises

What process carries colder, denser, saltier water to the surface? correct answers Upwelling, the
wind pushes surface water away from the coast and deeper water moves into the shoreline

What process drives warmer, less denser, less salty water down? correct answers Downwelling,
the wind pushes surface water toward the shoreline and that surface water cycles down into the
the deeper zones (opposite direction of upwelling cycle)

What is a thermoHaline current? correct answers ocean currents that flow thousands of meters
below the surface; driven by differences in the water's density, which is controlled by
temperature (thermo) and salinity (haline).

When sea ice forms, what is left in the sea water that was not frozen? correct answers Salt. So
cold polar water is saltier because of the glaciers.

When glaciers melt, what happens to the ocean/seawaters? correct answers The ocean/seawater
becomes less salty due to the melting water from the glaciers. Imagine a melting ice cube in a
glass of lemonade....the lemonade gets watered down from the melting ice

What is the basic process of the thermohaline cycle? correct answers Polar ice forms, leaving the
seawater even saltier. That salty cold water sinks. More surface water moves in to replace the

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