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Exam 10: The Restless Ocean

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Question 21

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Because deep ocean circulation is driven largely by variations in water temperature and salinity, it is also called ________ circulation.

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Question 22

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Waves begin to "feel bottom" when the depth of water is ________.

A) equal to one-half the wavelength
B) equal to the wavelength
C) twice as great as the wavelength
D) equal to the fetch

E) A) and D)
F) C) and D)

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Question 23

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If a spit grows as it is deposited, and extends completely across the former mouth of an estuary, separating it from the open sea, it has become a(n)________.

The largest daily tidal range occurs in association with spring tides.

A baymouth bar is an example of "hard stabilization," a feature constructed by people to control wave erosion.

Waves begin to "feel bottom" at a depth that is about one-half their wavelength.

Groins are constructed for the purpose of maintaining or widening beaches that are losing sand.

Fetch is ________.

As the tide rises, water flows in toward the shore as the ebb tide.

One result of wave refraction is that wave energy is concentrated ________.

Barrier islands are common on the Gulf Coast but rare or absent along the Pacific Coast of the United States.

A(n)________ is a place where fresh and salt water mix, such as a drowned river valley along a submergent coast.

The daily tidal range is of the least magnitude during ________.

The center of each of Earth's five major gyres is found at about ________ latitude.

Examine the satellite view of chlorophyll concentrations in the southern Atlantic Ocean along the southwest coast of Africa (the nations of Namibia and South Africa) . Which of the following statements offers the best explanation for the observed pattern(s) ?

Examine the map shown in the figure. If you were to go swimming in the ocean along this shoreline, which way would the longshore current carry you? ________

Turbulent water created by breaking waves is known as ________.

Which of the following shoreline features is a result of deposition?

When waves reach shallow water they tend to be ________, which makes them become parallel to the shore.

When viewed from above, the North Atlantic Gyre displays a clockwise sense of motion.