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Practice Quizzes
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1
What would happen to ozone levels if stratospheric nitric acid levels increased?
A)Increase
B)Decrease
C)No change
2
Which part of the atmosphere contains the highest concentrations of ozone?
A)Troposphere
B)Stratosphere
C)Mesosphere
D)Thermosphere
3
What is the average global ozone concentration?
A)100 Dobson units
B)200 Dobson units
C)300 Dobson units
4
During what season in the southern hemisphere does the so-called ozone hole become largest?
A)Winter
B)Spring
C)Fall
D)Summer
5
Identify two greenhouse gases.
A)Carbon dioxide and oxygen
B)Methane and carbon dioxide
C)Oxygen and ozone
D)Nitrogen and oxygen
6
Why do atmospheric carbon dioxide concentrations fluctuate seasonally?
A)Changes in human activity
B)Changes in plant growth
C)Changes in precipitation
D)Changes in temperature
7
What has happened to the amount of CO2 in the atmosphere over the past 200 years?
A)Increasing
B)Decreasing
C)Staying the same
8
How does CO2 affect the temperature of the Earth?
A)Makes it warmer than it would be otherwise
B)Makes it colder than it would be otherwise
C)Makes no difference in the temperature
9
Which Earth system component absorbs more carbon than it releases?
A)Hydrosphere
B)Geosphere
C)Atmosphere
10
What part of the Earth system benefits from increased levels of CO2?
A)Animal biosphere
B)Plant biosphere
C)Neither benefit
11
What is the primary source of most greenhouse gases?
A)Power production
B)Agriculture
C)Industry
D)Automobiles
12
What percentage of global greenhouse gas emissions come from the US?
A)10%
B)25%
C)35%
D)50%
13
Which of the following is both a negative and positive climate change feedback mechanism caused by higher temperatures?
A)Replacement of tundra with forest
B)Increased cloud formation
C)Melting of ice sheets
D)Addition of water vapor to the atmosphere
14
How do scientists study the impact greenhouse gases have on climate?
A)Using computer models
B)Using ice core data
C)Using pollen data
D)All of the above
15
What do climate models predict will happen to precipitation patterns at the tropics over the next 100 years?
A)Increase
B)Decrease
C)Stay about the same
16
What do climate models predict will happen globally to weather over the next 100 years?
A)Increased severe storms and heat waves
B)Decreased severe storms and heat waves
C)Little change to severe storms and heat waves
17
What do climate models predict will happen globally to sea level over the next 100 years?
A)Increase
B)Decrease
C)Little change
18
Which of the following is not a greenhouse gas?
A)water vapor
B)methane
C)carbon dioxide
D)stratospheric ozone
E)nitrous oxide
19
Which of the following is not a reason that global climate warming is so difficult to understand?
A)there are ways in which global climate warming can create positive feedback loops, making warming occur faster
B)there are ways in which global climate change can create negative feedback loops, keeping warming from occurring at all
C)the complexity of the global climate is very difficult to model with computers, making it tough to predict what might happen
D)we don't have enough information to make informed decisions about human influences on global climate warming
E)we don't have enough data from the geological record to hypothesize how the Earth's climate system works
20
Which of the following is a consequence of global climate warming?
A)evaporation rates will decrease creating lower relative humidity
B)cloud cover will decrease as temperatures rise because it will be harder to get air to cool and create clouds
C)the distribution of wind and pressure systems will change influencing how much rainfall specific places receive
D)the tropical rainforest areas will expand due to the increased amount of moisture in the atmosphere due to evaporation
E)sea level will not change as evaporation from oceans will counteract the melting of ice contributing water to the oceans
21
Which of the following cannot be linked to global climate changes?
A)Changes in the amount of radiation from the sun
B)Changes in the amount of water in the oceans
C)Changes in the position of the governments around the world with regards to forcing factors
D)Changes in the amount of reflected and re-emitted radiation from Earth's surface
E)All of the above are factors linked to global climate changes





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