Exam 24: Human Impacts, Biodiversity, and Environmental Issues
Exam 1: Human Biology, Science, and Society85 Questions
Exam 2: The Chemistry of Living Things118 Questions
Exam 3: Structure and Function of Cells124 Questions
Exam 4: From Cells to Organ Systems107 Questions
Exam 5: The Skeletal System95 Questions
Exam 6: The Muscular System107 Questions
Exam 7: Blood114 Questions
Exam 8: Heart and Blood Vessels112 Questions
Exam 9: The Immune System and Mechanisms of Defense118 Questions
Exam 10: The Respiratory System: Exchange of Gases94 Questions
Exam 11: The Nervous System: Integration and Control111 Questions
Exam 12: Sensory Mechanisms107 Questions
Exam 13: The Endocrine System94 Questions
Exam 14: The Digestive System and Nutrition91 Questions
Exam 15: The Urinary System73 Questions
Exam 16: Reproductive Systems97 Questions
Exam 17: Cell Reproduction and Differentiation95 Questions
Exam 18: Cancer: Uncontrolled Cell Division and Differentiation89 Questions
Exam 19: Genetics and Inheritance81 Questions
Exam 20: DNA Technology and Genetic Engineering75 Questions
Exam 21: Development and Aging84 Questions
Exam 22: Evolution and the Origins of Life89 Questions
Exam 23: Ecosystems and Populations85 Questions
Exam 24: Human Impacts, Biodiversity, and Environmental Issues74 Questions
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Match the following air pollutants to their description.
-greenhouse gases
Free
(Multiple Choice)
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Correct Answer:
B
An increase in the current fertility rate of the human species will increase the human carrying capacity of Earth.
Free
(True/False)
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Correct Answer:
False
Subsistence farming in tropical regions of the world results in habitat loss because of the practices of ________ and ________.
Free
(Essay)
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Correct Answer:
burning; clear-cutting (answers may go in any order)
Gases such as nitrous oxide and carbon dioxide are called greenhouse gases because they
(Multiple Choice)
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Ozone in the ________ comprises a thin layer that protects the surface of Earth from ultraviolet radiation.
(Short Answer)
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Match the following air pollutants to their description.
-acid rain
(Multiple Choice)
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Biomass fuels are least likely to be used in which one of the following countries?
(Multiple Choice)
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Creating a sustainable world will require stabilizing the human population growth rate and the global environment.
(True/False)
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Twenty-five percent of all prescription drugs sold in the United States are based on substances derived from fewer than 50 species of plants.
(True/False)
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Sources of energy that are renewable and derived from plants are called ________.
(Short Answer)
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Creation of sustainable ecosystems CANNOT be achieved through
(Multiple Choice)
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A thermal inversion occurs when a warm stagnant air mass traps a cooler air mass containing smog beneath it.
(True/False)
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Rising atmospheric concentrations of greenhouse gasses are causing which of the following two phenomena to occur?
(Multiple Choice)
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Pollutants of water include both living organisms and nonliving materials.
(True/False)
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Increasing population density on marginal lands in rural areas has resulted in desertification, which reduces the ability of the land to sustain the population.
(True/False)
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Humans must work together to create a sustainable world. What can you do to contribute to this cause?
(Essay)
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Hydrocarbons and nitrogen oxides combine with water vapor in the presence of sunlight to form a gray layer of ________.
(Short Answer)
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Despite abundant vegetation, ________ make poor farmland because of little topsoil and scant soil nutrients.
(Short Answer)
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