Question 1

Carbon dioxide levels are increasing because

Accepted Answer

A) human agriculture has greatly increased the amount of carbon dioxide given off by plants during respiration. 
B) humans have begun releasing carbon that was formerly sequestered in fossil fuels into the atmosphere. 
C) holes in the ozone layer have reduced the total amount of photosynthesis occurring in the biosphere. 
D) the huge growth in the human population and domestic livestock has increased the amount of carbon dioxide being released through respiration. 
A) human agriculture has greatly increased the amount of carbon dioxide given off by plants during respiration. 
B) humans have begun releasing carbon that was formerly sequestered in fossil fuels into the atmosphere. 
C) holes in the ozone layer have reduced the total amount of photosynthesis occurring in the biosphere. 
D) the huge growth in the human population and domestic livestock has increased the amount of carbon dioxide being released through respiration.

Question 2

One of the major effects of an increase in atmospheric carbon dioxide is

Accepted Answer

A) an increase in average global temperature. 
B) cooler average temperatures as carbon dioxide reflects sunlight back into space. 
C) an acceleration of the depletion of ozone. 
D) an increase in the pH of oceans and lakes. 
A) an increase in average global temperature. 
B) cooler average temperatures as carbon dioxide reflects sunlight back into space. 
C) an acceleration of the depletion of ozone. 
D) an increase in the pH of oceans and lakes.

Question 3

Increased carbon dioxide levels in the atmosphere have contributed to acidification of the oceans.This change of the water's pH due to a change in CO₂ concentrations is an example of

Accepted Answer

A) how global warming has affected a biotic factor in the biosphere. 
B) how global warming has affected an abiotic factor in the biosphere. 
C) how human activities have affected a biotic factor in the biosphere. 
D) how human activities have affected an abiotic factor in the biosphere. 
A) how global warming has affected a biotic factor in the biosphere. 
B) how global warming has affected an abiotic factor in the biosphere. 
C) how human activities have affected a biotic factor in the biosphere. 
D) how human activities have affected an abiotic factor in the biosphere.

Question 4

Drought,species extinction,and melting of glaciers are all consequences of ________.

Accepted Answer

The answer of Drought,species extinction,and melting of glaciers are all...

Carbon dioxide levels are increasing because

One of the major effects of an increase in atmospheric carbon dioxide is

Increased carbon dioxide levels in the atmosphere have contributed to acidification of the oceans.This change of the water's pH due to a change in CO₂ concentrations is an example of

Drought,species extinction,and melting of glaciers are all consequences of ________.

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

Growth of Populations

Communities of Organisms

Ecosystems

Applying the Science

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Exam 15: General Principles of Ecology

Carbon dioxide levels are increasing because

One of the major effects of an increase in atmospheric carbon dioxide is

Increased carbon dioxide levels in the atmosphere have contributed to acidification of the oceans.This change of the water's pH due to a change in CO₂ concentrations is an example of

Drought,species extinction,and melting of glaciers are all consequences of ________.

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

Growth of Populations

Communities of Organisms

Ecosystems

Applying the Science

Filters