Test Bank Human Biology Concepts and Current Issues 9th Edition Michael Johnson, Suzanne Long

Test Bank for Human Biology
Concepts and Current Issues 9th
Edition By Michael Johnson,
Suzanne Long (All Chapters 1-24,
100% Original Verified, A+ Garde)
All Chapters Arranged Reverse: 24-1
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,Human Biology: Concepts and Current Issues, 9e (Johnson)
Chapter 24 Human Impacts, Biodiversity, and Environmental Issues

24.1 Multiple Choice Questions

1) Which one of the following is the most significant greenhouse gas in the atmosphere,
comprising approximately 60% of the total?
A) water vapor
B) carbon dioxide
C) methane
D) nitrous oxide
E) chlorofluorocarbons
Answer: A
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1

2) In 2018, the Intergovernmental Panel on Climate Change (IPCC) recommended worldwide
elimination of fossil fuel use within the next
A) 5 years.
B) 15 years.
C) 30 years.
D) 100 years.
E) 300 years.
Answer: C
Topic: Current Issue
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1

3) All of the following are major concerns regarding the effects of air pollution EXCEPT which
one?
A) smog
B) acid rain
C) eutrophication
D) ozone layer depletion
E) global warming
Answer: C
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1




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,4) Gases such as nitrous oxide and carbon dioxide are called greenhouse gases because they
A) block sunlight from reaching Earth.
B) block specific wavelengths of sunlight from penetrating.
C) permit sunlight to enter but trap the heat energy in the atmosphere.
D) block both sunlight and heat energy from penetrating the atmosphere.
E) stimulate photosynthesis in most plants.
Answer: C
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1

5) How do chlorofluorocarbons (CFCs) deplete the ozone layer?
A) The ozone is replaced with CFCs in the stratosphere.
B) Chlorine atoms react with ozone, which turns it into oxygen.
C) When ozone is polluted with CFCs it falls as acid rain.
D) Chlorine atoms reflect UV from the sun, which destroys the ozone.
E) CFCs make ozone more dense, which causes thermal inversions.
Answer: B
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1b
GLO: G1

6) The main human activities that have raised atmospheric CO2 levels are
A) succession and adaptive radiation.
B) home development on grasslands and wetlands.
C) drainage of wetlands along rivers and oceans.
D) deforestation and burning fossil fuels.
E) the harnessing of solar and nuclear energy.
Answer: D
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1




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, 7) Certain gases in the upper atmosphere allow sunlight to pass through to Earth's surface but
prevent heat from escaping. This is known as
A) global positioning.
B) desertification.
C) the greenhouse effect.
D) thermal inversion.
E) eutrophication.
Answer: C
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1

8) The largest hole in the ozone layer occurs in the stratospheric layer over
A) the Amazon rainforests.
B) the eastern coast of the United States.
C) the western coast of the United States.
D) Africa and South America.
E) Antarctica.
Answer: E
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1b
GLO: G1

9) The greenhouse effect is a natural and important phenomenon because it
A) removes smog from affected areas.
B) maintains the surface temperature on Earth.
C) reverses the effect that CFCs have on the ozone layer.
D) decreases the amount of carbon dioxide in the stratosphere.
E) reverses the effects of deforestation.
Answer: B
Topic: Sec. 24.1
Bloom's: Remembering/Understanding
LO: 24.1a
GLO: G1




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