ocean final 3 of 6

Which of the following statements is FALSE considering thermohaline circulation? a. Thermohaline circulation is caused by even and steady global heating of the ocean. b. Thermohaline circulation is the result of heating of the ocean at lower latitudes and cooling at high latitudes. c. Thermohaline circulation is driven by density gradients. d. Thermohaline circulation transports tropical waters to polar regions.

Thermohaline circulation transports tropical waters to polar regions.

A system of four currents completing a flow circuit around the periphery of an ocean basin is collectively called: a. a cell. b. a gyre. c. a microscale current. d. convection cells. e. none of these

a gyre

The largest (in terms of transport) of the western boundary currents is the: a. Gulf Stream. b. California Current. c. Labrador Current. d. Canary Current. e. Kuroshio Current

kuroshio

Most deep bottom water forms: a. near the ocean floor in the Pacific Arctic. b. near the ocean floor in the Antarctic. c. near the ocean surface in the Pacific Arctic. d. near the ocean surface in the Antarctic.

near the ocean surface in the Antarctic

The North Atlantic Deep Water is formed off the coast of a. the Mediterranean b. Norway c. Alaska d. Japan

norway

Which of the following is a body/bodies of intermediate water is/are created by very salty water? a. Red Sea Intermediate b. Antarctic Intermediate c. Pacific Intermediate d. Common Intermediate

red sea intermediate

Which ocean surface current carries the greatest volume of water transport? a. The Kuroshio (or Japan) Current b. The North Equatorial Current in the Pacific c. The South Equatorial Current in the Pacific d. The Bengual Current e. The Canary Current

the Kurisio (or Japan) current

As it exits the Straits of Gibraltar, the Mediterranean water sinks under the surface water of central North Atlantic.

true

Surface currents are primarily wind driven.

true

The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary Current and the North Equatorial Current. Transverse currents link the eastern and western boundary currents.

true

The Pacific Subarctic water is a type of deep water

true

England's weather is ____ than would be expected at that latitude because of the influence of surface currents. a. colder b. drier c. less humid d. warmer and wetter e. cooler and drier

warmer and wetter

Which of the following is NOT an eastern boundary current? a. Canary Current b. Benguela Current c. Gulf Stream d. West Australian Current e. all of these

west Australian current

Generally the fastest and deepest ocean currents are: a. northern boundary currents. b. eastern boundary currents. c. western boundary currents. d. southern boundary currents. e. none of these

western boundary current

Which of these is generally not an El Niño effect? a. A decline in the exotic species of fish and other forms of marine life in the affected waters. b. An increase in ocean surface temperature in the eastern Pacific. c. An increase in rainfall in west coastal countries or states of the American continents. d. An often catastrophic decrease in the commercial fisheries of the affected countries. e. none of these

A decline in the exotic species of fish and other forms of marine life in the affected waters

All of the following statements are true about an Ekman spiral EXCEPT: a. a wind-driven surface current in the northern hemisphere will flow about 45 angle to the wind. b. with increasing depth, each layer will move at an angle to the overlying layer of water. c. because of Ekman transport, at some depth, known as the friction depth, water will be moving in the opposite direction from the surface current. d. Ekman spiral is not influenced by Coriolis. e. none of these

Ekman spiral is not influenced by Coriolis

Which current within a northern hemisphere gyre would you expect to have the lowest salinity and temperature? a. a western boundary current. b. an eastern boundary current. c. a southern boundary current. d. a northern boundary current. e. all of these

an eastern boundary current

The densest water in ocean currents is the: a. warmest and saltiest. b. coldest and saltiest. c. warmest and freshest. d. coldest and freshest. e. none of these

coldest and saltiest

The Earth's rotation influences currents by a "force" known as: a. Ekman spiral. b. geostrophism. c. gyre counter rotation. d. Coriolis effect. e. none of these

coriolis effect

the Kuroshio Current is an example of an eastern boundary current.

false