27, Where is deusity stratification least pronounced (almost absent b polar lati

Question

27, Where is deusity stratification least pronounced (almost absent b polar latitudes 28, what is not a characteristic of western boundary currents? warm water poleward b. They are fast moving currents e. They are deep currents d. They are broad currents 29. What is not a characteristic of an EI Nião Southern Oseillation? a. High pressure area shifts to the western Pacifie b. Trade winds across the Pacific weaken or reverse directions c. Eastward moverment of warm water along the equator d. Upwelling along the South American coast intensifies 30. Which of the following is false concerning the Ekman spiral? a. The movement of surface currents is the same direction as the wind above b. The velocity of an ocean current slows as water depth increases e. Current direction is affected by the Coriolis Force as currents deepen d. The Ekman spiral explains the phenomena of ocean currents flowing between 45° and 90 from prevailing wind direction 31. A transverse current is a. a bottom current flowing in the same direction as an overlying surface current. b. a surface current that connects eastern and western boundary currents. c. a cold current that flows from the poles towards the equator. d. a thermohaline current originating in Antarctica. 32. What is a gyre? a. A type of surface current b. A circular flow of water around the periphery (edges) of an ocean basin. c. An upwelling circular current d. A type of current along the western margins of ocean basins 33. California's Climate is strongly affected by a: cold eastern boundary current. b. a. warm eastern boundary current. c. cold western boundary current d. warm western boundary current.

Explanation / Answer

26) Option d is correct

Deep thermohaline currents

Thermohaline circulation begins in the Earth's polar regions. When ocean water in these areas gets very cold, sea ice forms. The surrounding seawater gets saltier, increases in density and sinks.

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