Question 1

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

Accepted Answer

The answer of Compare and contrast unidirectional change with cyclic...

Question 2

In the inset in the figure below,why is there a seasonal variation in carbon dioxide (CO₂)concentrations? A) CO₂ concentrations rise and fall as photosynthesis decreases and increases. B) CO₂ concentrations rise and fall in conjunction with power plant emissions. C) CO₂ concentrations rise and fall with variations in solar radiation. D) The measurements were made in different places at different times of year.

Accepted Answer

Seasonal variation in carbon dioxide concentrations is mainly due to changes in photosynthesis. During the spring and summer, there is an increase in photosynthesis as plants and trees grow and take in more carbon dioxide, leading to a decrease in atmospheric carbon dioxide levels. In the fall and winter, photosynthesis decreases as plants die and decay, leading to an increase in atmospheric carbon dioxide levels. This cycle is known as the "carbon cycle" and is an important component of Earth's natural processes.

Question 3

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 ________.
A) 1°C
B) 2°C
C) 4°C
D) 8°C

Accepted Answer

According to the IPCC, the average temperature could increase by 4°C by 2100 due to greenhouse gas emissions.

Question 4

Based on the figure below,how does the change in global temperature since the Industrial Revolution compare with temperature change in the past thousand years? 
A) The temperature has increased,and at a very fast rate.
B) The temperature has increased at rates similar to other temperature changes.
C) The temperature has decreased at a very fast rate.
D) There has been little temperature change since the Industrial Revolution.

Accepted Answer

The graph shows that the global temperature has increased rapidly since the Industrial Revolution compared to the relatively stable temperature fluctuations in the past thousand years.

Question 5

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

Accepted Answer

The increased data collected in recent years supports the theory that the Earth's climate is warming as a direct result of human activities, specifically the increase in atmospheric greenhouse gases. Other options such as solar output and carbon dioxide levels decreasing have been found to not have a significant impact on global warming.

Question 6

Describe the likelihood and possible impacts of future amounts of sea level rise.

Accepted Answer

The answer of Describe the likelihood and possible impacts of...

Question 7

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

The answer of How has the Earth's climate changed in...

Question 8

Provide an example of a positive feedback process as it relates to global climate change.

Accepted Answer

The answer of Provide an example of a positive feedback...

Question 9

According to the figure below,how much has atmospheric carbon dioxide (CO₂)increased in parts per million (ppm)in approximately the last 50 years? A) from about 310 to 320 ppm B) from about 360 to 400 ppm C) from about 320 to 400 ppm D) from about 380 to 400 ppm

Accepted Answer

The answer of According to the figure below,how much has...

Question 10

How does our modern concentration of atmospheric CO₂ compare with CO₂ during the past 800,000 years of Earth's history? A) Atmospheric CO2 concentrations have been constant for the past 800,000 years. B) It is lower today than at any time in the past 800,000 years. C) It is greater today than at any time in the past 800,000 years. D) There is too much variability in atmospheric CO₂ to describe any trends through time.

Accepted Answer

The answer of How does our modern concentration of atmospheric...

Question 11

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately ________ years ago.
A) 65 million
B) 5 million
C) 800,000
D) 150,000

Accepted Answer

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately 800,000 years ago. This information includes data on temperature, atmospheric gases, and other climate-related variables, which can be used to better understand past climate changes and inform predictions for future changes.

Question 12

In the last few decades,global warming has been most strongly affecting the climate and wildlife of ________ regions.
A) equatorial
B) temperate
C) polar
D) deep-sea

Accepted Answer

Polar regions, such as the Arctic and Antarctica, are experiencing the most significant impacts of global warming, including melting sea ice, rising sea levels, and changes in the ecosystems and wildlife that rely on these regions.

Question 13

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? 
A) rise about 120 m
B) rise about 20 m
C) fall about 20 m
D) fall about 120 m

Accepted Answer

The answer of The figure below shows changes in sea...

Question 14

When did Vikings establish settlements in Iceland and Greenland?
A) during the Last Glacial Maximum 25,000 years ago
B) during the Holocene Maximum 6000 years ago
C) during the Little Ice Age 300 years ago
D) during the Medieval Warm Period about 1000 years ago

Accepted Answer

Vikings established settlements in Iceland and Greenland during the Medieval Warm Period about 1000 years ago.

Question 15

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 answer of The graph below is the Keeling Curve,a...

Question 16

Identify five probable outcomes of global climate change.

Accepted Answer

The answer of Identify five probable outcomes of global climate...

Question 17

Discuss three lines of evidence that global climate change is currently taking place.

Accepted Answer

The answer of Discuss three lines of evidence that global...

Question 18

Describe one way humans have impacted the Earth System.

Accepted Answer

The answer of Describe one way humans have impacted the...

Question 19

What is a biogeochemical cycle? Provide an example.

Accepted Answer

The answer of What is a biogeochemical cycle? Provide an...

Question 20

What role do greenhouse gases play in the Earth's climate? If there were no greenhouse gases on the Earth,what would the climate be like?

Accepted Answer

The answer of What role do greenhouse gases play in...

Quiz 19: Global Change in the Earth System

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

In the inset in the figure below,why is there a seasonal variation in carbon dioxide (CO₂) concentrations?

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 ________.

Based on the figure below,how does the change in global temperature since the Industrial Revolution compare with temperature change in the past thousand years?

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

Describe the likelihood and possible impacts of future amounts of sea level rise.

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

Provide an example of a positive feedback process as it relates to global climate change.

According to the figure below,how much has atmospheric carbon dioxide (CO₂) increased in parts per million (ppm) in approximately the last 50 years?

How does our modern concentration of atmospheric CO₂ compare with CO₂ during the past 800,000 years of Earth's history?

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately ________ years ago.

In the last few decades,global warming has been most strongly affecting the climate and wildlife of ________ regions.

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?

When did Vikings establish settlements in Iceland and Greenland?

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?

Identify five probable outcomes of global climate change.

Discuss three lines of evidence that global climate change is currently taking place.

Describe one way humans have impacted the Earth System.

What is a biogeochemical cycle? Provide an example.

What role do greenhouse gases play in the Earth's climate? If there were no greenhouse gases on the Earth,what would the climate be like?

Quiz 19: Global Change in the Earth System

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

In the inset in the figure below,why is there a seasonal variation in carbon dioxide (CO2) concentrations?

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 ________.

Based on the figure below,how does the change in global temperature since the Industrial Revolution compare with temperature change in the past thousand years?

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

Describe the likelihood and possible impacts of future amounts of sea level rise.

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

Provide an example of a positive feedback process as it relates to global climate change.

According to the figure below,how much has atmospheric carbon dioxide (CO2) increased in parts per million (ppm) in approximately the last 50 years?

How does our modern concentration of atmospheric CO2 compare with CO2 during the past 800,000 years of Earth's history?

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately ________ years ago.

In the last few decades,global warming has been most strongly affecting the climate and wildlife of ________ regions.

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?

When did Vikings establish settlements in Iceland and Greenland?

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?

Identify five probable outcomes of global climate change.

Discuss three lines of evidence that global climate change is currently taking place.

Describe one way humans have impacted the Earth System.

What is a biogeochemical cycle? Provide an example.

What role do greenhouse gases play in the Earth's climate? If there were no greenhouse gases on the Earth,what would the climate be like?

In the inset in the figure below,why is there a seasonal variation in carbon dioxide (CO₂) concentrations?

According to the figure below,how much has atmospheric carbon dioxide (CO₂) increased in parts per million (ppm) in approximately the last 50 years?

How does our modern concentration of atmospheric CO₂ compare with CO₂ during the past 800,000 years of Earth's history?