Oceanography Quiz
Quiz by Sharon Marshall
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13 questions
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- Q1What creates surface currents in the ocean?Earth rotating on its axisincreased density due to salinity and temperaturewinds blowing across the ocean’s surfacethe gravitational pull of the moon30s
- Q2Where would you expect to find the highest levels of salinity at the ocean’s surface?under a melting glacierat the mouth of a riverin areas with large amounts of precipitationclosest to the equator30s
- Q3Which statement is true about the pressure, density, and temperature of ocean water as depth increases?All of these properties of ocean water increaseTemperature increases, density and pressure decreaseTemperature decreases, density and pressure increase.All of these properties of ocean water decrease30s
- Q4Which ocean is twice as large as the Atlantic?PacificIndianArcticSouthern30s
- Q5What happens to the density of ocean water as salinity increases?The density of ocean water increases.The density of ocean water decreases then increases.The density of ocean water decreasesThe density of ocean water does not change30s
- Q6What is the most abundant salt in the ocean?calcium sulfatepotassium chloridemagnesium sulfatesodium chloride30s
- Q7What is the average salinity of water found in the Pacific Ocean?35 parts per thousand97 parts per thousand3 parts per thousand340 parts per thousand30s
- Q8What causes the salinity of ocean water to decrease?a high rate of freezinga high rate of evaporationa high rate of precipitationa high rate of condensation30s
- Q9How does the Gulf Stream affect the climate of coastal regions along the eastern United States? (HINT: This surface current forms at the equator.)Because it is a cold surface current, it creates a cooler climate along the coast.Because it is a deep current, it is too dense to come to the surface and affect the coast’s climate.Because it is a warm surface current, it creates a warmer climate along the coast.Because of the Coriolis effect, it curves before it can affect the coast’s climate.30s
- Q10The Earth’s rotation causes surfaces currents to curve. What is this called?the Transitional effectthe Curving effectthe Coriolis effectthe Halocline effect30s
- Q11What ocean lies off the west coast of California?the Indian Oceanthe Atlantic Oceanthe Pacific Oceanthe Arctic Ocean30s
- Q12What is the density of ocean water affected by?temperature and salinityrotationsalinitytemperature30s
- Q13What is the difference in the formation of surface currents and deep currents?Surface currents are created by the Coriolis effect and deep currents are formed by subducting plates.There is no difference; they are both created by changes in ocean water density.Surface currents are created by wind and deep currents are formed by changes in ocean water density.There is no difference; they are both formed by wind.30s