Question 1

Which of the following is most likely to occur as a consequence of global climate change?

Accepted Answer

A) increases in sea levels,coastal erosion,flooding,and salinity of aquifers 
B) increases in sea levels,coastal erosion,and flooding,and a decrease in salinity of aquifers 
C) increases in sea levels and coastal erosion and decreases in flooding and salinity of aquifers 
D) an increase in sea levels and decreases in coastal erosion,flooding,and salinity of aquifers 
A) increases in sea levels,coastal erosion,flooding,and salinity of aquifers 
B) increases in sea levels,coastal erosion,and flooding,and a decrease in salinity of aquifers 
C) increases in sea levels and coastal erosion and decreases in flooding and salinity of aquifers 
D) an increase in sea levels and decreases in coastal erosion,flooding,and salinity of aquifers A

Question 2

Which of the following biomes is most likely to increase its primary productivity in response to an increase in atmospheric carbon dioxide levels?

Accepted Answer

A) temperate coniferous forest 
B) tropical rain forest 
C) temperate grassland 
D) temperate deciduous forest 
A) temperate coniferous forest 
B) tropical rain forest 
C) temperate grassland 
D) temperate deciduous forest C

Question 3

As a consequence of global climate change,human populations in low-lying coastal areas will become threatened by rising sea levels.

Accepted Answer

A) True 
 B)False  True

Question 4

The proportion of the world's population exposed to malarial infection is expected to increase as a consequence of global climate change.

Accepted Answer

A) True 
 B)False

Question 5

As a consequence of global climate change,crop production is likely to

Accepted Answer

A) increase in both developed and developing countries. 
B) increase in developed countries and decrease in developing countries. 
C) decrease in developed countries and increase in developing countries. 
D) decrease in both developed and developing countries. 
A) increase in both developed and developing countries. 
B) increase in developed countries and decrease in developing countries. 
C) decrease in developed countries and increase in developing countries. 
D) decrease in both developed and developing countries.

Question 6

Greenhouse gases existed naturally in the atmosphere before the Industrial Revolution.

Accepted Answer

A) True 
 B)False

Question 7

Humans are causing the first instances of significant climate change in Earth's history.

Accepted Answer

A) True 
 B)False

Question 8

In response to an increase in atmospheric carbon dioxide concentrations,plants generally

Accepted Answer

A) decrease their water-use efficiency. 
B) increase their rate of photosynthesis. 
C) open their stomata more. 
D) experience increased water loss from transpiration. 
A) decrease their water-use efficiency. 
B) increase their rate of photosynthesis. 
C) open their stomata more. 
D) experience increased water loss from transpiration.

Question 9

Samples of pollen taken from ________ cores in lake beds have allowed scientists to reconstruct the vegetation of many regions existing during the past 20,000 years.

Accepted Answer

The answer of Samples of pollen taken from ________ cores...

Question 10

Plants exposed to higher atmospheric carbon dioxide levels often partially close the ________ in their leaves to reduce water loss.

Accepted Answer

The answer of Plants exposed to higher atmospheric carbon dioxide...

Question 11

________ levels were about 100 meters lower during the last glacial maximum than they are today,and they are expected to rise higher in the future as a consequence of global warming.

Accepted Answer

The answer of ________ levels were about 100 meters lower...

Question 12

Which of the following gases in the atmosphere is not considered a greenhouse gas?

Accepted Answer

A) carbon dioxide 
B) nitrogen 
C) water vapor 
D) ozone 
A) carbon dioxide 
B) nitrogen 
C) water vapor 
D) ozone

Question 13

In the 1990s,if 8.5 Gt of carbon were released annually from the burning of fossil fuels and deforestation,why was the increase in the atmosphere only 3.2 Gt of carbon?

Accepted Answer

A) There were losses up and out of the atmosphere. 
B) There was absorption by oceans and terrestrial ecosystems. 
C) Carbon was converted to other atmospheric chemicals. 
D) Major reforestation in northern temperate regions absorbed the difference. 
A) There were losses up and out of the atmosphere. 
B) There was absorption by oceans and terrestrial ecosystems. 
C) Carbon was converted to other atmospheric chemicals. 
D) Major reforestation in northern temperate regions absorbed the difference.

Question 14

As a consequence of global climate change,plant and animal distributions will generally shift toward higher latitudes and elevations.

Accepted Answer

A) True 
 B)False

Question 15

Deforestation causes a decrease in atmospheric carbon dioxide concentrations.

Accepted Answer

A) True 
 B)False

Question 16

Decomposition proceeds faster under warm and ________ conditions.

Accepted Answer

The answer of Decomposition proceeds faster under warm and ________...

Question 17

Carbon dioxide is the only greenhouse gas that is increasing in concentration as a result of human activities.

Accepted Answer

A) True 
 B)False

Question 18

The atmospheric concentration of ________ has increased by more than 25 percent in the past century,due largely to the burning of fossil fuels.

Accepted Answer

The answer of The atmospheric concentration of ________ has increased...

Question 19

At elevated atmospheric carbon dioxide levels,downregulation is

Accepted Answer

A) plants allocating more energy to root development. 
B) a reduced number of leaf stomata. 
C) a reduction in transpiration rates. 
D) lower production of rubisco,which reduces the uptake rate of carbon dioxide by plant leaves. 
A) plants allocating more energy to root development. 
B) a reduced number of leaf stomata. 
C) a reduction in transpiration rates. 
D) lower production of rubisco,which reduces the uptake rate of carbon dioxide by plant leaves.

Question 20

Several greenhouse gases are more effective than carbon dioxide at trapping heat.

Accepted Answer

A) True 
 B)False

Exam 30: Global Climate Change

Which of the following is most likely to occur as a consequence of global climate change?

Which of the following biomes is most likely to increase its primary productivity in response to an increase in atmospheric carbon dioxide levels?

As a consequence of global climate change,human populations in low-lying coastal areas will become threatened by rising sea levels.

The proportion of the world's population exposed to malarial infection is expected to increase as a consequence of global climate change.

As a consequence of global climate change,crop production is likely to

Greenhouse gases existed naturally in the atmosphere before the Industrial Revolution.

Humans are causing the first instances of significant climate change in Earth's history.

In response to an increase in atmospheric carbon dioxide concentrations,plants generally

Samples of pollen taken from ________ cores in lake beds have allowed scientists to reconstruct the vegetation of many regions existing during the past 20,000 years.

Plants exposed to higher atmospheric carbon dioxide levels often partially close the ________ in their leaves to reduce water loss.

________ levels were about 100 meters lower during the last glacial maximum than they are today,and they are expected to rise higher in the future as a consequence of global warming.

Which of the following gases in the atmosphere is not considered a greenhouse gas?

In the 1990s,if 8.5 Gt of carbon were released annually from the burning of fossil fuels and deforestation,why was the increase in the atmosphere only 3.2 Gt of carbon?

As a consequence of global climate change,plant and animal distributions will generally shift toward higher latitudes and elevations.

Deforestation causes a decrease in atmospheric carbon dioxide concentrations.

Decomposition proceeds faster under warm and ________ conditions.

Carbon dioxide is the only greenhouse gas that is increasing in concentration as a result of human activities.

The atmospheric concentration of ________ has increased by more than 25 percent in the past century,due largely to the burning of fossil fuels.

At elevated atmospheric carbon dioxide levels,downregulation is

Several greenhouse gases are more effective than carbon dioxide at trapping heat.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Life History

Intraspecific Population Regulation

Metapopulations

Species Interactions,population Dynamics,and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

Population Growth, resource Use, and Sustainability

Habitat Loss, biodiversity, and Conservation

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