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8/14/2019 Unit 1 Study Guide Part I Spring 2010
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Study Guide Unit 1 Part 1
Spring 2010
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What and How to Study
Study the PowerPoint lectures and their review questions.
Read the chapters assigned in the text.
Know the key vocabulary terms (lists at the end of each
chapter and/or the glossaries).Prepare frequently prior to the test. Review the film study
questions where applicable.
These statements apply to all of the unit tests and exam.
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Please Note
The study guide question project is a work
in progress, and accordingly, it is
incomplete. Therefore none of the study
question sets should be considered a
substitute for a complete and exhaustive
test preparation. This applies to all four of
the study guide question sets.
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Human Impact on the
Environment
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Human Impact on the
Environment Open the file: Human Impact on the
Environment Glossaryand study these
terms.
On test 1, you will see some of these
again in a matching format ,as well as, in
some multiple choice questions.
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Question 1
1. Define:pollutant.
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Answer 1
1. Define:pollutant.
Substances with which an ecosystem has
had no prior evolutionary experience
No adaptive mechanisms are in place to
deal with them
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Question 2
2. List 4 air pollutants.
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Answer 2
2.
List 4 air pollutants.
Carbon dioxide, nitrogen oxides, sulfurdioxide and sulfur trioxides.
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Question 3
3. What is a thermal inversion?
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Answer 3
3. What is a thermal inversion?
Weather pattern in which a layer ofcool, dense air is trapped beneath a
layer of warm air.
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Question 4
4. Complete the following acid rain
equation:
Nitric acid + limestone yields ? +? +?
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Answer 4
4. Complete the following acid rainequation:
Nitric acid + limestone yields ? +? +?
2 HNO3 + CaCO3 Ca(NO3)2 + H2O +CO2
Nitric acid + limestone yields calcium nitrate+ water + carbon dioxide
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Q 5
What chemicals are major components of
acid rain?
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A 5
sulfur and nitrogen oxides. These react
with water to product acids.
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Q 6
What are major sources of these
components?
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A 6
Coal-burning power plants and motor
vehicles are major sources of sulfur and
nitrogen oxides.
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Q 7
What is (are) the effect(s) of ozone
thinning?
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A 7
Increased amount of UV radiation reaches
Earths surface
UV damages DNA and negatively affectshuman health
UV also affects plants, lowers primary
productivity
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Q 8
What is the recipe for ozone loss?
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A 8
The polar winter leads to the formation of the polar vortex whichisolates the air within it.
Cold temperatures form inside the vortex; cold enough for theformation of Polar Stratospheric Clouds (PSCs). As the vortex airis isolated, the cold temperatures and the PSCs persist.
Once the PSCs form, heterogeneous reactions take place and
convert the inactive chlorine and bromine reservoirsto more active forms of chlorine and bromine.
No ozone loss occurs until sunlight returns to the air inside thepolar vortex and allows the production of active chlorineand initiates the catalytic ozone destruction cycles. Ozone
loss is rapid. The ozone hole currently covers a geographic region alittle bigger than Antarctica and extends nearly 10km in altitude in thelower stratosphere
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Q 9
How can the ozone layer be protected?
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A 9
CFC production has been halted in
developed countries, will be phased out in
developing countries
Methyl bromide will be phased out
Even with bans it will take more than 50years for ozone levels to recover
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Q 10
About ______ of the garbage produced is
______.
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A 10
; paper
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Q 11
Introduction of mechanized agriculture
and practices requires ..
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A 11
Introduction of mechanized agriculture
and practices requires inputs of
pesticides, fertilizer, fossil fuel
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Q 12
What is happening to the water tables in
India? Why?
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A 12
The International Water Management
Institute (IWMI) estimates that withdrawals
of underground water are double the rate
of aquifer recharge.
As a result, water tables are falling almost
everywhere.
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Q 13
What is the effect of these changes?
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A 13
Falling water tables are now also
threatening India's food production.
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Q 14
Define deforestation.
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A 14
Removal of all trees from large tracts ofland.
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Q 15
What are some effects of deforestation?
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A 15
Increased leaching and soil erosion
Increased flooding and sedimentation of
downstream rivers
Regional precipitation declines
Possible amplification of the greenhouse
effect
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Q 16
Where are major regions of deforestation?
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A 16
Rates of forest loss are greatest in Brazil,
Indonesia, Mexico, and Columbia
Highly mechanized logging is proceeding
in temperate forests of the United States
and Canada
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Q 17
Who is Wangari Maathai ? Why is she
famous?
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A 17
She is a Kenyan Nobel peace laureate;
her tree-planting campaign
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Q 18
What is biodiversity? Who is it affected by
deforestation?
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A 18
American Heritage Dictionary- Cite This Sourcebiodiversity (b'-d-vr's-t)n.
The number and variety of organisms foundwithin a specified geographic region.
The variability among living organisms on theearth, including the variability within and
between species and within and betweenecosystems.
Deforestation lowers biodiversity.
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Q 19
What is desertification?
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A 19
Conversion of large tracts of grassland to
desert-like conditions.
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The End of the Human Impact
Study Guide Questions
Please be sure to master the entire
lecture!