Question 1

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 2

Analysis of some areas that were affected by oil spills have shown that cleaned areas were in worse shape than areas left alone. How can this be and what do these studies tell us about the way we approach oil spills?

Accepted Answer

Chemicals used clean up oil spills, such as dispersants that break up oil slicks on the surface, can be very harmful to living things- including the organisms that would metabolize the oil naturally. This tells us that cleaning a spill involves trade-offs. The best way to deal with oil spills is to prevent them.

Question 3

Which statement applies to resources from the sea?

Accepted Answer

A) They are easier to recover than from the land 
B) They are more difficult to locate and extract than resources on land 
C) They are in greater variety than minerals on land 
D) They are less expensive to recover than from land 
A) They are easier to recover than from the land 
B) They are more difficult to locate and extract than resources on land 
C) They are in greater variety than minerals on land 
D) They are less expensive to recover than from land B

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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 6

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 7

Whaling has effectively ceased. Except for a small and relatively insignificant number of "pirate whalers," the taking of whales for profit is a thing of the past.

Accepted Answer

A) True 
 B)False

Question 8

The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least 400,000 years.

Accepted Answer

A) True 
 B)False

Question 9

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Accepted Answer

A) True 
 B)False

Question 10

Physical resources that are extracted from the ocean and are useful to humans include ____.

Accepted Answer

A) fish 
B) petroleum and natural gas 
C) heat derived from the motion of the ocean 
D) compounds used for medicine 
A) fish 
B) petroleum and natural gas 
C) heat derived from the motion of the ocean 
D) compounds used for medicine

Question 11

The largest known reservoir of hydrocarbons on Earth is ____.

Accepted Answer

A) oil 
B) coal 
C) petroleum 
D) methane hydrate 
A) oil 
B) coal 
C) petroleum 
D) methane hydrate

Question 12

A(n)____ resource is one that is naturally replaced by biological or physical processes.

Accepted Answer

A) nonrenewable 
B) renewable 
C) domestic 
D) unsustainable 
A) nonrenewable 
B) renewable 
C) domestic 
D) unsustainable

Question 13

An example of a fishing technique that is particularly disruptive is ____.

Accepted Answer

A) hook and line 
B) bottom trawling 
C) fly fishing 
D) spear fishing 
A) hook and line 
B) bottom trawling 
C) fly fishing 
D) spear fishing

Question 14

How is sea ice in the Arctic Ocean responding to global warming?

Accepted Answer

A) It is shrinking significantly. 
B) It has not yet responded, but may in the future. 
C) It has disappeared completely. 
D) It has grown slightly because of the cold water released by melting ice in Greenland. 
A) It is shrinking significantly. 
B) It has not yet responded, but may in the future. 
C) It has disappeared completely. 
D) It has grown slightly because of the cold water released by melting ice in Greenland.

Question 15

An example of a nonextractive resource provided by the ocean is ____.

Accepted Answer

A) transportation 
B) crabs 
C) oil 
D) manganese nodules 
A) transportation 
B) crabs 
C) oil 
D) manganese nodules

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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 18

Seawater is an important source of table salt.

Accepted Answer

A) True 
 B)False

Question 19

Eutrophication is caused by ____.

Accepted Answer

A) rising ocean temperatures 
B) the increase of atmospheric carbon dioxide 
C) the release of excess nutrients 
D) overfishing 
A) rising ocean temperatures 
B) the increase of atmospheric carbon dioxide 
C) the release of excess nutrients 
D) overfishing

Question 20

What property of plastic enables it to accumulate in ocean gyres?

Accepted Answer

A) It releases toxins as it decays. 
B) It absorbs carbon dioxide before photosynthetic organisms can get any. 
C) It blocks sunlight from penetrating into the ocean. 
D) It isn't biodegradable. 
A) It releases toxins as it decays. 
B) It absorbs carbon dioxide before photosynthetic organisms can get any. 
C) It blocks sunlight from penetrating into the ocean. 
D) It isn't biodegradable.

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

Analysis of some areas that were affected by oil spills have shown that cleaned areas were in worse shape than areas left alone. How can this be and what do these studies tell us about the way we approach oil spills?

Which statement applies to resources from the sea?

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

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

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

Whaling has effectively ceased. Except for a small and relatively insignificant number of "pirate whalers," the taking of whales for profit is a thing of the past.

The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least 400,000 years.

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Physical resources that are extracted from the ocean and are useful to humans include ____.

The largest known reservoir of hydrocarbons on Earth is ____.

A(n)____ resource is one that is naturally replaced by biological or physical processes.

An example of a fishing technique that is particularly disruptive is ____.

How is sea ice in the Arctic Ocean responding to global warming?

An example of a nonextractive resource provided by the ocean is ____.

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

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

Seawater is an important source of table salt.

Eutrophication is caused by ____.

What property of plastic enables it to accumulate in ocean gyres?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters

Exam 15: Uses and Abuses of the Ocean

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

Analysis of some areas that were affected by oil spills have shown that cleaned areas were in worse shape than areas left alone. How can this be and what do these studies tell us about the way we approach oil spills?

Which statement applies to resources from the sea?

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

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

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

Whaling has effectively ceased. Except for a small and relatively insignificant number of "pirate whalers," the taking of whales for profit is a thing of the past.

The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least 400,000 years.

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Physical resources that are extracted from the ocean and are useful to humans include ____.

The largest known reservoir of hydrocarbons on Earth is ____.

A(n)____ resource is one that is naturally replaced by biological or physical processes.

An example of a fishing technique that is particularly disruptive is ____.

How is sea ice in the Arctic Ocean responding to global warming?

An example of a nonextractive resource provided by the ocean is ____.

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

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

Seawater is an important source of table salt.

Eutrophication is caused by ____.

What property of plastic enables it to accumulate in ocean gyres?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters