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Exam 15: The Dynamic Ocean

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Question 21

Multiple Choice

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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) three times as great as the wavelength

E) B) and D)
F) B) and C)

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Question 22

True/False

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Elevated wave-cut platforms in Southern California are evidence that this coastal area is emergent.

A) True
B) False

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Question 23

True/False

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The horizontal distance separating successive wave crests is called the wave period.

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

Tidal flats are submerged during ebb tide.

Fetch refers to ________.

A baymouth bar is a manmade feature designed to control wave erosion.

What term denotes a sand bar built across the former mouth of an estuary, separating it from the open sea?

A ________ is an isolated remnant of bedrock standing above a wave-cut platform.

Matching. Match the tide with the appropriate description. -lowest high tides and highest low tides of the month

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

The energy that creates surface ocean currents comes from prevailing winds.

The presence of which one of the following would indicate that the land had been uplifted or that sea level had fallen?

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

A variety of techniques and efforts are used to stabilize shorelines throughout the world. Are all of these efforts only temporary measures or are any of them permanent? Also, does urbanization and development of coastal areas always contribute to shoreline erosion? Explain.

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

An isolated remnant of wave erosion is a ________.

When a wave breaks it changes from being a wave of oscillation to being a wave of ________.

Matching. Match the tide with the appropriate description. -Sun, Moon, and Earth lie on a straight line in space

Matching. Match the tide with the appropriate description. -highest high tides and lowest low tides of the month