Bio Oce Final
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A cross-section of Earth reveals a layered structure that has different thicknesses and densities. How do geologists know this?
From observing the transit times
(wrong answers:
Ice sheets,
Sediment,
Electromagnetic fields)
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Earth surface winds are caused by air moving from
High pressure to low pressure
(wrong answers:
The Westerlies,
Low Pressure Areas)
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Geostrophic currents result from
Balance between gravity and Coriolis effect
(wrong answers:
Ocean circulation,
Westerlies)
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Ocean salinity is on average_____. Salinity is______ than average at the equator because of_______.
35; lower;precipitation
(wrong answers:
20;higher;runoff,
35;higher;precipitation,
45;lower;groundwater)
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The atmosphere of the earth consists primarily of
oxygen and nitrogen
(wrong answers:
oxygen and hydrogen,
oxygen and phosphorus ,
nitrogen and sulfur)
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The deepest of ocean waters are classified as
Hadal
(wrong answers:
Twilight Zone,
Abyssal ,
Photic,
Thermocline)
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The main driving forces of ocean circulation
Temp and wind, gravity and wind, salinity and temp
(wrong answers:
Wind and precipitation, gravity and temperature,
Salinity and gravity, Wind and temp)