Question 1

The effect of has led to the decline of calcium-forming phytoplankton as well as coral reef polyps.

Accepted Answer

A)  pollution 
B)  a warming ocean 
C)  increased sedimentation rates 
D)  ocean acidification 
A)  pollution 
B)  a warming ocean 
C)  increased sedimentation rates 
D)  ocean acidification D

Question 2

Second to petroleum and natural gas, the most profitable physical resource recovered from the marine environment is .

Accepted Answer

A)  precious metals 
B)  diamonds 
C)  sand and gravel 
D)  coal 
A)  precious metals 
B)  diamonds 
C)  sand and gravel 
D)  coal C

Question 3

Why can nutrients be considered pollutants in some situations?

Accepted Answer

Excess nutrients, such as fertilizer runoff, can stimulate the growth of some species to the detriment of others, destroying the natural balance of an ocean area. Huge blooms of phytoplankton can choke the gills of some animals and even deplete oxygen in ocean water.

Question 4

What accounts for most of the total value of world trade transported by sea?

Accepted Answer

A)  aluminum ore 
B)  finished goods 
C)  oil 
D)  grain 
A)  aluminum ore 
B)  finished goods 
C)  oil 
D)  grain

Question 5

The leading country that harvests the most commercial marine catch is (the) .

Accepted Answer

A)  United States 
B)  Russia 
C)  Indonesia 
D)  China 
A)  United States 
B)  Russia 
C)  Indonesia 
D)  China

Question 6

The fishing industry is careful to conserve fisheries and not exceed the maximum sustainable yield.

Accepted Answer

A) True 
 B)False

Question 7

What happens in the example of the "Tragedy of the Commons"?

Accepted Answer

A)  A shared resource is depleted by individuals who maximize their own gains. 
B)  An abundant resource is lost because it is not very valuable. 
C)  Individuals are not allowed to use a public resource. 
D)  One person ruins a shared resource by refusing to cooperate. 
A)  A shared resource is depleted by individuals who maximize their own gains. 
B)  An abundant resource is lost because it is not very valuable. 
C)  Individuals are not allowed to use a public resource. 
D)  One person ruins a shared resource by refusing to cooperate.

Question 8

What marine resource is the result from the deposition, precipitation, or accumulation of useful substances in the ocean or seabed?

Accepted Answer

A)  marine resource 
B)  biological resource 
C)  physical resource 
D)  nonextractive resource 
A)  marine resource 
B)  biological resource 
C)  physical resource 
D)  nonextractive resource

Question 9

In addition to melting of glacial ice, why does sea level rise in a warming world?

Accepted Answer

A)  Seawater expands slightly as it warms. 
B)  Currents shift to push water onto coastlines. 
C)  Rainfall increases over the ocean. 
D)  Land that had been covered by glacial ice floods. 
A)  Seawater expands slightly as it warms. 
B)  Currents shift to push water onto coastlines. 
C)  Rainfall increases over the ocean. 
D)  Land that had been covered by glacial ice floods.

Question 10

Why can introduced species be problematic?

Accepted Answer

A)  They sometimes outcompete native species and reduce biological diversity. 
B)  They consistently find it difficult to survive. 
C)  They can reduce demand for native seafood. 
D)  They often produce toxins dangerous to humans. 
A)  They sometimes outcompete native species and reduce biological diversity. 
B)  They consistently find it difficult to survive. 
C)  They can reduce demand for native seafood. 
D)  They often produce toxins dangerous to humans.

Question 11

Pollutants can have negative influences on organisms by interfering with biochemical processes.

Accepted Answer

A) True 
 B)False

Question 12

In some ways, an overambitious cleanup of a crude oil spill can be counterproductive.

Accepted Answer

A) True 
 B)False

Question 13

Foreign organisms, called introduced species, have been known to be beneficial to native species by sharing food and space.

Accepted Answer

A) True 
 B)False

Question 14

Harbors have grown larger with more of their areas filled with docks and storage facilities.

Accepted Answer

A) True 
 B)False

Question 15

If it weren't for the greenhouse effect, Earth's average atmospheric temperature would be .

Accepted Answer

A)  below the freezing point of water 
B)  a couple degrees cooler than it is today 
C)  about the same as it is today 
D)  above the boiling point of water 
A)  below the freezing point of water 
B)  a couple degrees cooler than it is today 
C)  about the same as it is today 
D)  above the boiling point of water

Question 16

One  economical drawback of tidal power is that it .

Accepted Answer

A)  emits an abundance of carbon dioxide into the atmosphere 
B)  requires a  high initial infrastructure investment 
C)  emits particulate matter into the atmosphere 
D)  requires a  high cost to operate tidal generators 
A)  emits an abundance of carbon dioxide into the atmosphere 
B)  requires a  high initial infrastructure investment 
C)  emits particulate matter into the atmosphere 
D)  requires a  high cost to operate tidal generators

Question 17

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

Accepted Answer

A) True 
 B)False

Question 18

What is potable water?

Accepted Answer

A)  water suitable for drinking 
B)  high-salinity water 
C)  nutrient-rich water 
D)  water in a swift current 
A)  water suitable for drinking 
B)  high-salinity water 
C)  nutrient-rich water 
D)  water in a swift current

Question 19

Wind is the world's fastest-growing power source.

Accepted Answer

A) True 
 B)False

Question 20

If the levels of synthetic organic chemicals are very low in seawater, then how is chlorinated hydrocarbons found in dolphins at dangerous levels?

Accepted Answer

The level of synthetic organic chemicals

The effect of has led to the decline of calcium-forming phytoplankton as well as coral reef polyps.

Second to petroleum and natural gas, the most profitable physical resource recovered from the marine environment is .

Why can nutrients be considered pollutants in some situations?

What accounts for most of the total value of world trade transported by sea?

The leading country that harvests the most commercial marine catch is (the) .

The fishing industry is careful to conserve fisheries and not exceed the maximum sustainable yield.

What happens in the example of the "Tragedy of the Commons"?

What marine resource is the result from the deposition, precipitation, or accumulation of useful substances in the ocean or seabed?

In addition to melting of glacial ice, why does sea level rise in a warming world?

Why can introduced species be problematic?

Pollutants can have negative influences on organisms by interfering with biochemical processes.

In some ways, an overambitious cleanup of a crude oil spill can be counterproductive.

Foreign organisms, called introduced species, have been known to be beneficial to native species by sharing food and space.

Harbors have grown larger with more of their areas filled with docks and storage facilities.

If it weren't for the greenhouse effect, Earth's average atmospheric temperature would be .

One economical drawback of tidal power is that it .

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

What is potable water?

Wind is the world's fastest-growing power source.

If the levels of synthetic organic chemicals are very low in seawater, then how is chlorinated hydrocarbons found in dolphins at dangerous levels?

An Ocean World

Plate Tectonics

The Ocean Floor

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Coasts

Life in the Ocean

Marine Communities

Filters

Exam 11: Uses and Abuses of the Ocean

The effect of has led to the decline of calcium-forming phytoplankton as well as coral reef polyps.

Second to petroleum and natural gas, the most profitable physical resource recovered from the marine environment is .

Why can nutrients be considered pollutants in some situations?

What accounts for most of the total value of world trade transported by sea?

The leading country that harvests the most commercial marine catch is (the) .

The fishing industry is careful to conserve fisheries and not exceed the maximum sustainable yield.

What happens in the example of the "Tragedy of the Commons"?

What marine resource is the result from the deposition, precipitation, or accumulation of useful substances in the ocean or seabed?

In addition to melting of glacial ice, why does sea level rise in a warming world?

Why can introduced species be problematic?

Pollutants can have negative influences on organisms by interfering with biochemical processes.

In some ways, an overambitious cleanup of a crude oil spill can be counterproductive.

Foreign organisms, called introduced species, have been known to be beneficial to native species by sharing food and space.

Harbors have grown larger with more of their areas filled with docks and storage facilities.

If it weren't for the greenhouse effect, Earth's average atmospheric temperature would be .

One economical drawback of tidal power is that it .

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

What is potable water?

Wind is the world's fastest-growing power source.

If the levels of synthetic organic chemicals are very low in seawater, then how is chlorinated hydrocarbons found in dolphins at dangerous levels?

An Ocean World

Plate Tectonics

The Ocean Floor

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Coasts

Life in the Ocean

Marine Communities

Filters