Urbanization- Deforestation-Mining
Environmental Science
Name: ____________________________________________ Period: _____ Date:___________
Essential Question: How do human activities such as urbanization, deforestation, and mining affect the
lithosphere and the environment?
Use the picture on the left to describe the following:
a. Atmosphere:______________________________
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b. Lithosphere:______________________________
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c. Hydrosphere: _____________________________
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Urbanization is the physical growth of urban areas as a result of rural migration and even suburban
concentration into cities, particularly the very large ones. Urbanization causes deforestation,
eutrophication, ground water depletion, and many other types of pollution.
Rural
Urban
1. Describe a rural area. Use the picture above!
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2. Describe an urban area. Use the picture above!
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3. How is the lithosphere and the environment affected by urbanization? Think!
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___ 4. How could the exponential growth of the human population and urbanization impact regions
throughout the world?
A It could lead to a decrease in the amount of pollution in the regions.
B. It could lead to deforestation and more pollution.
___5. How does urbanization change the natural flow of water?
A. erosion caused by runoff is reduced and precipitation is increased.
B. surface runoff is increased and infiltration is reduced
II. Deforestation is the "permanent removal of standing forests," as
the U.S. Environmental Protection Agency defines it. Deforestation
affects the earth's physical environment by causing soil erosion, poor
water quality, reduced food security, impaired flood protection and
increase of greenhouse gases. Because forests are the source of
employment and food for many people, their destruction can cause
mass migration to cities. With the influence that tropical forests have
on weather, particularly rain and the condition of the atmosphere,
deforestation can cause global warming that leads to the melting of
polar ice caps and climatic changes.http://greenliving.nationalgeographic.com/deforestation-effects-global-scale-2214.html
http://conservationbytes.com/2009/02/24/cartoon-guide-to-biodiversity-loss-iii/
6. What is deforestation?
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7. How is the lithosphere and the environment affected by deforestation?
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8. How is the global climate affected by deforestation? Think! Plants use CO2 for photosynthesis. ( 10 pts)
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III. Mining and smelting industries cause tremendous devastation of both
terrestrial and aquatic environments. Mines and smelters produce large
quantities of wastes like lead and mercury, that pollute both land (
terrestrial ) and bodies of water ( aquatic).
Lead can cause increase blood pressure and cause infertility, nerve disorders
and muscle and joint pain. Mercury affect fetuses, infants, and children. The
primary health effect of mercury exposure in the womb, can adversely affect
a baby's growing brain and nervous system. Impacts on cognitive thinking,
memory, attention, language, and fine motor and visual spatial skills have
been seen in children exposed to mercury in the womb. Mines destroy the
lithosphere by building tunnels or scrapping large amount of lands to get
minerals and gems. Mining areas must be rejuvenated to restore the features
of the land.
9. How are we affected by mining?
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10. Why is rejuvenation important? Think!
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____11. Which is a major source of air pollution created by humans?
A. hydroelectric plants B. industrial factories
C. reforestation
D. nuclear power
____12. Which of the following is not a source of pollution?
A. hydroelectric plants B. industrial factories
C. reforestation
D. nuclear power
R.Angat
http://www.youtube.com/watch?v=beKX1UWpyTs http://www.youtube.com/watch?v=oaQ5_9G-33k
Fracking: http://www.youtube.com/watch?v=Uti2niW2BRA