Question 1

Increasing ratios of oxygen-18 to oxygen-16 in glacial ice indicate ________.

Accepted Answer

A)   advancing ice sheets
B)   warming temperatures
C)   increased volcanic emissions
D)   uplift of land surfacesE) C) and D)
F) A) and B) B

Question 2

With the increased data collected in recent years,scientists have become increasingly certain that the Earth's climate is ________.

Accepted Answer

A)   not warming because carbon dioxide levels are decreasing
B)   not warming because the Sun's activity is at a minimum
C)   warming solely as a result of increased solar output
D)   warming as a result of human inputs of atmospheric greenhouse gasesE) None of the above
F) A) and C)

Question 3

Milankovitch cycles describe variation in the Earth's ________.

Accepted Answer

A)   sea level
B)   orbit and tilt
C)   atmospheric carbon dioxide concentrations
D)   cosmic-ray fluxE) All of the above
F) None of the above

Question 4

The hydrologic cycle includes which of these?

Accepted Answer

A)   the advance and retreat of glaciers
B)   the accumulation of methane in the atmosphere
C)   the secretion of carbonate shells by marine organisms
D)   photosynthesisE) A) and B)
F) A) and C)

Question 5

Which geologic event is NOT suspected as a source of major climate change and mass-extinction events?

Accepted Answer

A)   the massive eruption of flood basalts
B)   the eruption of supervolcanoes
C)   the impact of asteroids
D)   very large earthquakesE) A) and D)
F) A) and C)

Question 6

The graph below is the Keeling Curve,a record of carbon dioxide measured at Mauna Loa beginning in 1958.What can be learned from this graph? What do the two lines (black and grey)tell us?

Accepted Answer

The Keeling Curve shows atmospheric concentrations of carbon dioxide.The zig-zagging grey line shows annual seasonal fluctuations that are the result of changes in plant respiration.The black line clearly shows a steady increase in the amount of carbon dioxide in the atmosphere.

Question 7

How are greenhouse gases like carbon dioxide and methane different from other atmospheric gases like nitrogen and oxygen?

Accepted Answer

A)   Greenhouse gases absorb thermal energy from the Sun and reradiate it,whereas other atmospheric gases reflect it.
B)   Greenhouse gases are more efficient at absorbing thermal energy and reradiating it than the other atmospheric gases.
C)   Greenhouse gases are found at higher levels of the atmosphere,where ozone is found.
D)   Greenhouse gases are found at lower levels of the atmosphere,where ozone is found.E) B) and C)
F) None of the above

Question 8

Compare and contrast unidirectional change with cyclic change.Include an example of each in your answer.

Accepted Answer

While both describe pathways of change o...

Question 9

blogger writes that global warming is not real,noting that his or her city had its coldest ever-recorded temperature last winter.The correct statement would be that the blogger is ________.

Accepted Answer

A)   correct,because global warming is not occurring
B)   correct,because global warming is occurring only in the polar regions
C)   incorrect,because the blogger is confusing weather with climate
D)   incorrect,because global warming is measured only during the summerE) B) and C)
F) A) and C)

Question 10

Models used by the Intergovernmental Panel on Climate Change show that by the year 2100,the average annual temperature will have increased in some parts of the world by as much as ________.

Accepted Answer

A)   1°C
B)   2°C
C)   4°C
D)   8°CE) All of the above
F) None of the above

Question 11

The figure below shows changes in sea level since the last ice age ended.Based on this,if the Earth were to enter another ice age similar to the last one,what would the sea level most likely do?

Accepted Answer

A)   rise about 120 m
B)   rise about 20 m
C)   fall about 20 m
D)   fall about 120 mE) All of the above
F) A) and D)

Question 12

The figure below shows parts of the global carbon cycle.Which chemicals are also parts of the carbon cycle? 3 (carbon trioxide)  B)  CH4 (methane) ,O3 (ozone) ,and C (graphite or diamond)  C)  CH4 (methane) ,HCO3- (bicarbonate) ,and CaCO3 (calcite)  D)  CO (carbon monoxide) ,CO3 (carbon trioxide) ,and CaCO3 (calcite) " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   CO (carbon monoxide) ,C (graphite or diamond) ,and CO3 (carbon trioxide) 
B)   CH4 (methane) ,O3 (ozone) ,and C (graphite or diamond) 
C)   CH4 (methane) ,HCO3- (bicarbonate) ,and CaCO3 (calcite) 
D)   CO (carbon monoxide) ,CO3 (carbon trioxide) ,and CaCO3 (calcite) E) B) and D)
F) All of the above C

Question 13

The evolution of life on the Earth is an example of a(n) ______________.

Accepted Answer

A)   static condition
B)   Earth system
C)   unidirectional change
D)   cyclic changeE) None of the above
F) A) and B)

Question 14

The evolution of the Earth's atmosphere has been a(n) __________.

Accepted Answer

A)   static condition
B)   Earth system
C)   unidirectional change
D)   cyclic changeE) A) and C)
F) All of the above

Question 15

What is a biogeochemical cycle? Provide an example.

Accepted Answer

A biogeochemical cycle involves the pass...

Question 16

Identify five probable outcomes of global climate change.

Accepted Answer

Student answers will vary,but can includ...

Question 17

The hole in the ozone layer has been brought about by anthropogenic emissions of ________.

Accepted Answer

A)   carbon dioxide
B)   methane
C)   chlorofluorocarbons
D)   water vaporE) A) and B)
F) A) and D)

Question 18

The warmest global temperatures since the last ice age occurred in the ________.

Accepted Answer

A)   recent period of human-induced global warming
B)   Younger Dryas,approximately 13,000 years ago
C)   Little Ice Age,approximately 400 years ago
D)   Holocene Maximum,approximately 6,000 years agoE) A) and B)
F) A) and C)

Question 19

How has the Earth's climate changed in the past? What are some natural causes of long-term climate change? Short-term climate change?

Accepted Answer

Student answers should contain some of t...

Question 20

A basic history of global climate change is preserved in the stratigraphic record because

Accepted Answer

A)   characteristics of igneous rocks depend on climate because of variations in cooling rates.
B)   the amount of sediment deposited is a function of climate.
C)   the amount of fossils preserved in the rock record is dependent on climate.
D)   depositional setting and the assemblages of organisms depend on the climate.E) All of the above
F) B) and D)

Exam 23: Global Change in the Earth System

Increasing ratios of oxygen-18 to oxygen-16 in glacial ice indicate ________.

Correct Answer
verified
B

With the increased data collected in recent years,scientists have become increasingly certain that the Earth's climate is ________.

Correct Answer
verified

Milankovitch cycles describe variation in the Earth's ________.

Correct Answer
verified

The hydrologic cycle includes which of these?

Correct Answer
verified

Which geologic event is NOT suspected as a source of major climate change and mass-extinction events?

Correct Answer
verified

The graph below is the Keeling Curve,a record of carbon dioxide measured at Mauna Loa beginning in 1958.What can be learned from this graph? What do the two lines (black and grey)tell us?

How are greenhouse gases like carbon dioxide and methane different from other atmospheric gases like nitrogen and oxygen?

Correct Answer
verified

Compare and contrast unidirectional change with cyclic change.Include an example of each in your answer.

Correct Answer
verified
While both describe pathways of change o...
View Answer

blogger writes that global warming is not real,noting that his or her city had its coldest ever-recorded temperature last winter.The correct statement would be that the blogger is ________.

Correct Answer
verified

Models used by the Intergovernmental Panel on Climate Change show that by the year 2100,the average annual temperature will have increased in some parts of the world by as much as ________.

Correct Answer
verified

The figure below shows changes in sea level since the last ice age ended.Based on this,if the Earth were to enter another ice age similar to the last one,what would the sea level most likely do?

Correct Answer
verified

The figure below shows parts of the global carbon cycle.Which chemicals are also parts of the carbon cycle?

Correct Answer
verified
C

The evolution of life on the Earth is an example of a(n) ______________.

Correct Answer
verified

The evolution of the Earth's atmosphere has been a(n) __________.

Correct Answer
verified

What is a biogeochemical cycle? Provide an example.

Correct Answer
verified
A biogeochemical cycle involves the pass...
View Answer

Identify five probable outcomes of global climate change.

Correct Answer
verified
Student answers will vary,but can includ...
View Answer

The hole in the ozone layer has been brought about by anthropogenic emissions of ________.

Correct Answer
verified

The warmest global temperatures since the last ice age occurred in the ________.

Correct Answer
verified

How has the Earth's climate changed in the past? What are some natural causes of long-term climate change? Short-term climate change?

Correct Answer
verified
Student answers should contain some of t...
View Answer

A basic history of global climate change is preserved in the stratigraphic record because

Correct Answer
verified

Exam 23: Global Change in the Earth System

Increasing ratios of oxygen-18 to oxygen-16 in glacial ice indicate ________.

Correct AnswerverifiedB

With the increased data collected in recent years,scientists have become increasingly certain that the Earth's climate is ________.

Correct AnswerverifiedShow Answer

Milankovitch cycles describe variation in the Earth's ________.

Correct AnswerverifiedShow Answer

The hydrologic cycle includes which of these?

Correct AnswerverifiedShow Answer

Which geologic event is NOT suspected as a source of major climate change and mass-extinction events?

Correct AnswerverifiedShow Answer

The graph below is the Keeling Curve,a record of carbon dioxide measured at Mauna Loa beginning in 1958.What can be learned from this graph? What do the two lines (black and grey)tell us?

How are greenhouse gases like carbon dioxide and methane different from other atmospheric gases like nitrogen and oxygen?

Correct AnswerverifiedShow Answer

Compare and contrast unidirectional change with cyclic change.Include an example of each in your answer.

Correct AnswerverifiedWhile both describe pathways of change o...View AnswerShow Answer

blogger writes that global warming is not real,noting that his or her city had its coldest ever-recorded temperature last winter.The correct statement would be that the blogger is ________.

Correct AnswerverifiedShow Answer

Models used by the Intergovernmental Panel on Climate Change show that by the year 2100,the average annual temperature will have increased in some parts of the world by as much as ________.

Correct AnswerverifiedShow Answer

The figure below shows changes in sea level since the last ice age ended.Based on this,if the Earth were to enter another ice age similar to the last one,what would the sea level most likely do?

Correct AnswerverifiedShow Answer

The figure below shows parts of the global carbon cycle.Which chemicals are also parts of the carbon cycle?

Correct AnswerverifiedC

The evolution of life on the Earth is an example of a(n) ______________.

Correct AnswerverifiedShow Answer

The evolution of the Earth's atmosphere has been a(n) __________.

Correct AnswerverifiedShow Answer

What is a biogeochemical cycle? Provide an example.

Correct AnswerverifiedA biogeochemical cycle involves the pass...View AnswerShow Answer

Identify five probable outcomes of global climate change.

Correct AnswerverifiedStudent answers will vary,but can includ...View AnswerShow Answer

The hole in the ozone layer has been brought about by anthropogenic emissions of ________.

Correct AnswerverifiedShow Answer

The warmest global temperatures since the last ice age occurred in the ________.

Correct AnswerverifiedShow Answer

How has the Earth's climate changed in the past? What are some natural causes of long-term climate change? Short-term climate change?

Correct AnswerverifiedStudent answers should contain some of t...View AnswerShow Answer

A basic history of global climate change is preserved in the stratigraphic record because

Correct AnswerverifiedShow Answer

Correct Answer
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B

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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While both describe pathways of change o...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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C

Correct Answer
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Correct Answer
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Correct Answer
verified
A biogeochemical cycle involves the pass...
View Answer

Correct Answer
verified
Student answers will vary,but can includ...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified
Student answers should contain some of t...
View Answer

Correct Answer
verified