Question 1

-Which of the following gases accounts for the largest amount of radiative forcing?

Accepted Answer

A) Carbon dioxide (CO2) 
B) Methane (CH4) 
C) Nitrous oxides (N2O) 
D) Chlorofluorocarbons (CFCs) 
A) Carbon dioxide (CO2) 
B) Methane (CH4) 
C) Nitrous oxides (N2O) 
D) Chlorofluorocarbons (CFCs)

Question 2

The Younger Dryas,the Medieval Climate Anomaly,and the Little Ice Age demonstrate that climates naturally fluctuate.

Accepted Answer

A) True 
 B)False

Question 3

In which of the following ways is the study of tree rings,speleothems,and corals similar?

Accepted Answer

A) The fossilized form of each is used for understanding past climatic conditions. 
B) The chronology each can provide only dates back to a maximum of 5,000 years and are,therefore,only useful for relatively recent climatic trends. 
C) All are composed of organic materials and are therefore good candidates for radiocarbon dating. 
D) Each have growth bands,yielding evidence of the conditions under which they formed and grew. 
A) The fossilized form of each is used for understanding past climatic conditions. 
B) The chronology each can provide only dates back to a maximum of 5,000 years and are,therefore,only useful for relatively recent climatic trends. 
C) All are composed of organic materials and are therefore good candidates for radiocarbon dating. 
D) Each have growth bands,yielding evidence of the conditions under which they formed and grew.

Question 4

Scientists attribute the recent rise in atmospheric concentrations of nitrous oxide (N2O)primarily to

Accepted Answer

A) automobile combustion. 
B) wastewater management. 
C) agricultural activity. 
D) industrial practices. 
A) automobile combustion. 
B) wastewater management. 
C) agricultural activity. 
D) industrial practices.

Question 5

The physical evidence for global climate change is limited,based primarily on conjecture and indirect evidence.

Accepted Answer

A) True 
 B)False

Question 6

Describe the functioning of a general circulation model.What are some of the predictions for the 21st century based on GCMs?

Accepted Answer

GCMs are statistical models representing

Question 7

Carbon dioxide (CO2)has a longer residence time in the atmosphere than methane (CH 4)does.

Accepted Answer

A) True 
 B)False

Question 8

Based on climate reconstructions,there is ample evidence that climates have fluctuated throughout Earthʹs long history.Describe some of the mechanisms of this climate fluctuations.

Accepted Answer

Several examples may include solar varia

Question 9

Speleothems,like trees,have growth rings whose size and property reflect the conditions under which they formed.

Accepted Answer

A) True 
 B)False

Question 10

Ice cores provide a longer,but less detailed climate record than ocean sediment cores.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is NOT an example of an action an individual can take to help mitigate against climate change?

Accepted Answer

A) Planting trees,especially native species 
B) Using energy efficient light bulbs 
C) Improve regional land use practices 
D) Driving a vehicle with high fuel economy 
E) Eating locally sourced foods 
A) Planting trees,especially native species 
B) Using energy efficient light bulbs 
C) Improve regional land use practices 
D) Driving a vehicle with high fuel economy 
E) Eating locally sourced foods

Question 12

Which scenario predicts the lowest level of warming during the 21st century?

Accepted Answer

A) RCP2.6 
B) RCP6.0 
C) RCP8.5 
D) RCP4.5 
A) RCP2.6 
B) RCP6.0 
C) RCP8.5 
D) RCP4.5

Question 13

The science that studies Earthʹs past climates is

Accepted Answer

A) meteorology. 
B) dendrochronology. 
C) paleoclimatology. 
D) climate change science. 
A) meteorology. 
B) dendrochronology. 
C) paleoclimatology. 
D) climate change science.

Question 14

Earthʹs elliptical orbit around the sun (eccentricity)is mostly constant,only changing negligibly over a 100,000 year period.

Accepted Answer

A) True 
 B)False

Question 15

According to models developed by NOAA,by the end of the 21st century,global sea level may rise as high as

Accepted Answer

A) 0)2 m (0.7 ft). 
B) 0)5 m (1.6 ft). 
C) 1)2 m (3.9 m). 
D) 2)0 m (6.6 ft). 
A) 0)2 m (0.7 ft). 
B) 0)5 m (1.6 ft). 
C) 1)2 m (3.9 m). 
D) 2)0 m (6.6 ft).

Question 16

During the last 800,000,climate reconstructions show that CO 2 Never changed more than_________ppm upward or downward in any span of less than 1,000 years,though it has risen by this amount in the last 13 years.

Accepted Answer

A) 30 
B) 60 
C) 120 
D) 240 
A) 30 
B) 60 
C) 120 
D) 240

Question 17

A lower 18O /16O ratio in ocean core sediments is indicative of warmer temperatures,whereas a lower 18O /16O ratio in ice cores is indicative of cooler temperatures.

Accepted Answer

A) True 
 B)False

Question 18

Seasonal fluctuations in CO2 emissions reflect

Accepted Answer

A) increased fuel use for home and building heat in winter months. 
B) geothermal activity,which is highest in the fall. 
C) seasonal changes in vegetation cover in the higher latitudes of the Northern Hemisphere. 
D) summer melting in the tundra. 
A) increased fuel use for home and building heat in winter months. 
B) geothermal activity,which is highest in the fall. 
C) seasonal changes in vegetation cover in the higher latitudes of the Northern Hemisphere. 
D) summer melting in the tundra.

Question 19

The use of tree rings to study past climates is known as dendroclimatology.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is INCORRECT?

Accepted Answer

A) Human activities have increased the amount of atmospheric greenhouse gases. 
B) Global warming affects overall climate. 
C) Scientists can definitively (100% certainty)attribute climate changes to anthropogenic causes alone. 
D) Increased atmospheric carbon dioxide (CO2)causes warming temperatures. 
A) Human activities have increased the amount of atmospheric greenhouse gases. 
B) Global warming affects overall climate. 
C) Scientists can definitively (100% certainty)attribute climate changes to anthropogenic causes alone. 
D) Increased atmospheric carbon dioxide (CO2)causes warming temperatures.

-Which of the following gases accounts for the largest amount of radiative forcing?

The Younger Dryas,the Medieval Climate Anomaly,and the Little Ice Age demonstrate that climates naturally fluctuate.

In which of the following ways is the study of tree rings,speleothems,and corals similar?

Scientists attribute the recent rise in atmospheric concentrations of nitrous oxide (N₂O)primarily to

The physical evidence for global climate change is limited,based primarily on conjecture and indirect evidence.

Describe the functioning of a general circulation model.What are some of the predictions for the 21st century based on GCMs?

Carbon dioxide (CO₂)has a longer residence time in the atmosphere than methane (CH ₄)does.

Based on climate reconstructions,there is ample evidence that climates have fluctuated throughout Earthʹs long history.Describe some of the mechanisms of this climate fluctuations.

Speleothems,like trees,have growth rings whose size and property reflect the conditions under which they formed.

Ice cores provide a longer,but less detailed climate record than ocean sediment cores.

Which of the following is NOT an example of an action an individual can take to help mitigate against climate change?

Which scenario predicts the lowest level of warming during the 21st century?

The science that studies Earthʹs past climates is

Earthʹs elliptical orbit around the sun (eccentricity)is mostly constant,only changing negligibly over a 100,000 year period.

According to models developed by NOAA,by the end of the 21st century,global sea level may rise as high as

During the last 800,000,climate reconstructions show that CO 2 Never changed more than_________ppm upward or downward in any span of less than 1,000 years,though it has risen by this amount in the last 13 years.

A lower 18O /16O ratio in ocean core sediments is indicative of warmer temperatures,whereas a lower 18O /16O ratio in ice cores is indicative of cooler temperatures.

Seasonal fluctuations in CO₂ emissions reflect

The use of tree rings to study past climates is known as dendroclimatology.

Which of the following is INCORRECT?

The Science of Geography

The Solar System,sun,and Earth

Energy Balance Essentials

Wind Essentials

Waterʹs Unique Properties

Water on Earth

Review of Earthʹs Climate System

The Pace of Change

Earthʹs Surface Relief Features

Landmass Denudation

Drainage Basins and Drainage Patterns

Global Oceans and Seas

Snow Into Ice--The Basis of Glaciers

Soil Development and Soil Profiles

Energy Flows and Nutrient Cycles

Biogeographic Divisions

Filters

Exam 8: Population Growth and Fossil Fuel Burning the Setting for Climate Change

-Which of the following gases accounts for the largest amount of radiative forcing?

The Younger Dryas,the Medieval Climate Anomaly,and the Little Ice Age demonstrate that climates naturally fluctuate.

In which of the following ways is the study of tree rings,speleothems,and corals similar?

Scientists attribute the recent rise in atmospheric concentrations of nitrous oxide (N2O)primarily to

The physical evidence for global climate change is limited,based primarily on conjecture and indirect evidence.

Describe the functioning of a general circulation model.What are some of the predictions for the 21st century based on GCMs?

Carbon dioxide (CO2)has a longer residence time in the atmosphere than methane (CH 4)does.

Based on climate reconstructions,there is ample evidence that climates have fluctuated throughout Earthʹs long history.Describe some of the mechanisms of this climate fluctuations.

Speleothems,like trees,have growth rings whose size and property reflect the conditions under which they formed.

Ice cores provide a longer,but less detailed climate record than ocean sediment cores.

Which of the following is NOT an example of an action an individual can take to help mitigate against climate change?

Which scenario predicts the lowest level of warming during the 21st century?

The science that studies Earthʹs past climates is

Earthʹs elliptical orbit around the sun (eccentricity)is mostly constant,only changing negligibly over a 100,000 year period.

According to models developed by NOAA,by the end of the 21st century,global sea level may rise as high as

During the last 800,000,climate reconstructions show that CO 2 Never changed more than_________ppm upward or downward in any span of less than 1,000 years,though it has risen by this amount in the last 13 years.

A lower 18O /16O ratio in ocean core sediments is indicative of warmer temperatures,whereas a lower 18O /16O ratio in ice cores is indicative of cooler temperatures.

Seasonal fluctuations in CO2 emissions reflect

The use of tree rings to study past climates is known as dendroclimatology.

Which of the following is INCORRECT?

The Science of Geography

The Solar System,sun,and Earth

Energy Balance Essentials

Wind Essentials

Waterʹs Unique Properties

Water on Earth

Review of Earthʹs Climate System

The Pace of Change

Earthʹs Surface Relief Features

Landmass Denudation

Drainage Basins and Drainage Patterns

Global Oceans and Seas

Snow Into Ice--The Basis of Glaciers

Soil Development and Soil Profiles

Energy Flows and Nutrient Cycles

Biogeographic Divisions

Filters

Scientists attribute the recent rise in atmospheric concentrations of nitrous oxide (N₂O)primarily to

Carbon dioxide (CO₂)has a longer residence time in the atmosphere than methane (CH ₄)does.

Seasonal fluctuations in CO₂ emissions reflect