Question 1

What steps can you take to help reduce climate change?

Accepted Answer

Answers will vary,but may include not pr

Question 2

The majority of human population growth is now occurring in more-developed countries (MDCs).

Accepted Answer

A) True 
 B)False

Question 3

Which was the last interglacial period with temperatures similar to the present interglacial period?

Accepted Answer

A) Eemian interglacial. 
B) Holstein interglacial. 
C) Günz-Mindel interglacial. 
D) Flandrian interglacial. 
A) Eemian interglacial. 
B) Holstein interglacial. 
C) Günz-Mindel interglacial. 
D) Flandrian interglacial.

Question 4

Over the span of the last 5 million years,climate reconstructions show a series of cooler and warmer periods.

Accepted Answer

A) True 
 B)False

Question 5

What evidence establishes that climate change is currently occurring?

Accepted Answer

Temperature data showing an undeniable w

Question 6

Which of the following accurately describes the use of tree rings for studying past climates (dendroclimatology)?

Accepted Answer

A) The age of trees can be determined by tree ring analysis.By establishing the age of long-lived trees,one can determine the climate conditions of the area the year the tree sprouted. 
B) The width of annual tree rings indicates the climatic conditions; wider rings suggest favorable conditions,whereas narrower rings suggest harsher conditions. 
C) Dendrochronology is primarily used in the tropical regions,where one can easily correlate the ages of a tree species with the climatic conditions there. 
D) Because most trees only live 60 to 100 years,dendrochronology can only serve as a climate record for recent history and are primarily used to supplement instrument data. 
A) The age of trees can be determined by tree ring analysis.By establishing the age of long-lived trees,one can determine the climate conditions of the area the year the tree sprouted. 
B) The width of annual tree rings indicates the climatic conditions; wider rings suggest favorable conditions,whereas narrower rings suggest harsher conditions. 
C) Dendrochronology is primarily used in the tropical regions,where one can easily correlate the ages of a tree species with the climatic conditions there. 
D) Because most trees only live 60 to 100 years,dendrochronology can only serve as a climate record for recent history and are primarily used to supplement instrument data.

Question 7

Halogenated gases are purely anthropogenic and have no natural sources.

Accepted Answer

A) True 
 B)False

Question 8

To which does radiative forcing (climate forcing)refer?

Accepted Answer

A) The power of electromagnetic radiation per unit area. 
B) The amount by which some perturbation causes Earth's energy balance to deviate from zero. 
C) A measurement of solar radiation energy received on a give surface area. 
D) The contribution of each greenhouse gas to global warming. 
A) The power of electromagnetic radiation per unit area. 
B) The amount by which some perturbation causes Earth's energy balance to deviate from zero. 
C) A measurement of solar radiation energy received on a give surface area. 
D) The contribution of each greenhouse gas to global warming.

Question 9

Climate has fluctuated naturally over Earth's long history.As a result,most scientists are skeptical that human activity has contributed to recent trends in global climate.

Accepted Answer

A) True 
 B)False

Question 10

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 11

Which of the following is correct regarding Arctic sea ice?

Accepted Answer

A) Until recently,seasonal variations in sea ice extent were rare. 
B) Summer sea ice reached its minimum extent in 2001 and has gradually increased since then. 
C) Since 1979,summer sea ice minimum extent and winter sea ice maximum extent have declined. 
D) In the summer,most to all sea ice melts,only to refreeze in the winter.However,less water has been refreezing over the past decade. 
A) Until recently,seasonal variations in sea ice extent were rare. 
B) Summer sea ice reached its minimum extent in 2001 and has gradually increased since then. 
C) Since 1979,summer sea ice minimum extent and winter sea ice maximum extent have declined. 
D) In the summer,most to all sea ice melts,only to refreeze in the winter.However,less water has been refreezing over the past decade.

Question 12

Which is the term for changes in the orientation of Earth's axis over a 26 000-year cycle?

Accepted Answer

A) Eccentricity. 
B) Obliquity. 
C) Precession. 
D) Inclination. 
A) Eccentricity. 
B) Obliquity. 
C) Precession. 
D) Inclination.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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 15

Which summarizes the key elements of climate change science?

Accepted Answer

A) Study of past climates,measurement of current climatic change,and projection of future climate scenarios. 
B) Re-writing past climate summaries,dismissing statistical evidence,and espousing the status quo. 
C) Establishing policy on CO2 emissions. 
D) Quantifying the economic cost and benefits of climate warming. 
A) Study of past climates,measurement of current climatic change,and projection of future climate scenarios. 
B) Re-writing past climate summaries,dismissing statistical evidence,and espousing the status quo. 
C) Establishing policy on CO2 emissions. 
D) Quantifying the economic cost and benefits of climate warming.

Question 16

The average individual is helpless to do anything about climate change.

Accepted Answer

A) True 
 B)False

Question 17

Increased cloud cover resulting from warming temperatures may lead to either cloud albedo forcing or cloud greenhouse forcing.Which correctly pairs the feedback loops for cloud albedo forcing and cloud greenhouse forcing?

Accepted Answer

A) Negative; negative. 
B) Negative; positive. 
C) Positive; negative. 
D) Positive; positive. 
A) Negative; negative. 
B) Negative; positive. 
C) Positive; negative. 
D) Positive; positive.

Question 18

Methane (CH4)is the second most prevalent anthropogenic greenhouse gas.

Accepted Answer

A) True 
 B)False

Question 19

Approximately how many people could be displaced by a sea level rise of 1.0 m?

Accepted Answer

A) 1 300 000. 
B) 13 000 000. 
C) 100 300 000. 
D) 130 000 000. 
A) 1 300 000. 
B) 13 000 000. 
C) 100 300 000. 
D) 130 000 000.

Question 20

Natural climate forcing is greater than anthropogenic climate forcing.

Accepted Answer

A) True 
 B)False

What steps can you take to help reduce climate change?

The majority of human population growth is now occurring in more-developed countries (MDCs).

Which was the last interglacial period with temperatures similar to the present interglacial period?

Over the span of the last 5 million years,climate reconstructions show a series of cooler and warmer periods.

What evidence establishes that climate change is currently occurring?

Which of the following accurately describes the use of tree rings for studying past climates (dendroclimatology)?

Halogenated gases are purely anthropogenic and have no natural sources.

To which does radiative forcing (climate forcing)refer?

Climate has fluctuated naturally over Earth's long history.As a result,most scientists are skeptical that human activity has contributed to recent trends in global climate.

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

Which of the following is correct regarding Arctic sea ice?

Which is the term for changes in the orientation of Earth's axis over a 26 000-year cycle?

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

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.

Which summarizes the key elements of climate change science?

The average individual is helpless to do anything about climate change.

Increased cloud cover resulting from warming temperatures may lead to either cloud albedo forcing or cloud greenhouse forcing.Which correctly pairs the feedback loops for cloud albedo forcing and cloud greenhouse forcing?

Methane (CH4)is the second most prevalent anthropogenic greenhouse gas.

Approximately how many people could be displaced by a sea level rise of 1.0 m?

Natural climate forcing is greater than anthropogenic climate forcing.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters

Exam 11: Climate Change

What steps can you take to help reduce climate change?

The majority of human population growth is now occurring in more-developed countries (MDCs).

Which was the last interglacial period with temperatures similar to the present interglacial period?

Over the span of the last 5 million years,climate reconstructions show a series of cooler and warmer periods.

What evidence establishes that climate change is currently occurring?

Which of the following accurately describes the use of tree rings for studying past climates (dendroclimatology)?

Halogenated gases are purely anthropogenic and have no natural sources.

To which does radiative forcing (climate forcing)refer?

Climate has fluctuated naturally over Earth's long history.As a result,most scientists are skeptical that human activity has contributed to recent trends in global climate.

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

Which of the following is correct regarding Arctic sea ice?

Which is the term for changes in the orientation of Earth's axis over a 26 000-year cycle?

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

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.

Which summarizes the key elements of climate change science?

The average individual is helpless to do anything about climate change.

Increased cloud cover resulting from warming temperatures may lead to either cloud albedo forcing or cloud greenhouse forcing.Which correctly pairs the feedback loops for cloud albedo forcing and cloud greenhouse forcing?

Methane (CH4)is the second most prevalent anthropogenic greenhouse gas.

Approximately how many people could be displaced by a sea level rise of 1.0 m?

Natural climate forcing is greater than anthropogenic climate forcing.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters