Transcript Urbanization –DeforestationMining Eric Angat Teacher 1. What will happen to the trees when urbanization sets in? Think!

Urbanization –DeforestationMining
Eric Angat
Teacher
1. What will happen to the trees when
urbanization sets in? Think!
2. How are we affected by deforestation? Think!
Climate
change
Extinction of
species.
DEFORESTATION
Endangered
species.
Hunger
flooding
erosion
3. What is the difference between
rural and urban?
•More tress
•Fresh Air
•Less pollution
•Less tress
• smog
•more pollution
•Less
opportunity
•Less jobs
•More
opportunities
•More jobs
rural
urban
4. Define atmosphere, biosphere,
hydrosphere, and lithosphere.
The biosphere is the sum of
all ecosystems.
Rocks and soil
Our air.
Water on Earth
5. What are the positive and negative effects of
urbanization?
5. What are the positive and negative effects of
urbanization?
Positive effects
• Booming business
means more jobs.
• More
entertainment
places like parks,
concert halls,
movie theaters.
Negative effects
• Higher
population
density means
overcrowding.
• Groundwater
depletion.
• More trash
• Polluted air.
Greenhouse gases warm Our Planet.
Too much causes Global Warming!
Greenhouse
gases
trap heat on
Earth
Preventing Earth
from freezing.
But too much
greenhouse gas
causes
Global Warming.
http://www.srpmic-nsn.gov/government/epnr/ghg.asp
6. How does deforestation lead to
global warming? Think!
Plants use CO2 in
photosynthesis. This
alleviates or lessens
greenhouse gas in
the atmosphere.
CO2
(Carbon dioxide)
Greenhouse gas traps heat on Earth
BURNING
FOSSIL FUEL
http://a-zofglobalwarming.blogspot.com/2008/12/un-action-to-halt-deforestation.html
Cutting of trees
deprives our planet the
natural way (photosynthesis)
of removing excess
greenhouse gases that
causes Global Warming.
CO2
(carbon dioxide)
Greenhouse gas that
traps heat on Earth
BURNING FOSSIL FUEL
http://conservationbytes.com/2010/09/19/cartoon-guide-to-biodiversity-loss-ix/
7. How does deforestation result to landslide?
Roots hold the soil in
place preventing
erosion.
http://science.howstuffworks.com/environmental/earth/geology/landslide5.htm
Preventing EROSION
from happening.
http://blogs.agu.org/landslideblog/files/2012/11/12_11-UK-slide-51.jpg
8. What is fracking? How does it affect our
groundwater? Think!
Potable
water
source
Gas
tower
aquifer
Fracking zone –
introduction of
water, chemicals
and sand.
Municipal
water deposit
Aquifer
contamination
Fracking
breaks
http://genteconconciencia.es/blog/?p=7831
9. What is a microclimate?
Urbanization
The city develops a microclimate because of the
pollution. CO2, a
greenhouse gas, causes
temperature rise.
A microclimate is
where the
climate differs
from the
surrounding area.
Micro-climate
Is climate different from the surrounding climate
due to urbanization.
Pollution
More
CO2
Greenhouse
gas ( warmer)
10. A local government voted against the largescale development of buildings and
roads in the area. What could have been the
motive behind their decision?
A. It could lead to a decrease in the average
annual temperature in the area.
B. It could lead to the formation of heat islands,
creating a microclimate in the area.
C. It could lead to the introduction of invasive
species.
D. It could lead to a decrease in acid rain
production in the area.
Alternative Energy creates less
Pollution compared to fossil fuel.
Fossil Fuel
11. A company has several factories around the
world and has decided to transition
from burning fossil fuels to using alternative
energy resources. How could a decrease in
burning fossil fuels impact the atmosphere?
A. It could decrease the oxygen levels of the
atmosphere.
B. It could increase the nitrogen levels of the
atmosphere.
C. It could decrease the carbon dioxide levels of
the atmosphere.
D. It could increase the sulfur dioxide levels of the
atmosphere.
Urbanization
Asphalt
leads to covering
lands with concrete
and asphalt that
prevents water
from soaking into
the ground. This
leads to increase
runoff, erosion, and
flooding in low
lying areas.
12. How does urbanization change the
natural flow of water?
A. transpiration from vegetation is
increased and erosion is reduced.
B. precipitation is reduced and
infiltration is increased.
C. erosion caused by runoff is reduced
and precipitation is increased.
D. surface runoff is increased and
infiltration is reduced.
Higher population means less water and
more pollution and diseases.
13. Which consequence could an
exponentially growing human
population have on drinkable
water?
A. It could cause a decrease in the amount of
waste and pollutants in the water supply.
B. It could cause an increase in the amount of
water available for the population.
C. It could cause an increase in cases of
waterborne diseases.
D. It could cause a decrease in needing water for
survival.
Pipes to draw
water from the
aquifer. water.
Aquifer or groundwater
becomes salty and unusable.
Saltwater
intrusion
to aquifer.
14. The drilling for freshwater
increases along a coastal area. What is
a likely consequence of this action?
A. an intrusion of salt water into
aquifers
B. the loss of water resources in
estuaries
C. the destruction of estuaries because
of an increase in sea levels
D. a decrease in salt concentration in
inlet waterways
Less
Oxygen
More
CO2
Heated water
results to
death or
migration of
fish.
15. Some factories can increase the amount of
thermal pollution by dumping heated
water into lakes and rivers. How can this type of
pollution affect aquatic environments?
A. It can reduce the number of aquatic species in
the environment.
B. It can increase the amount of dissolved oxygen
in the environment.
C. It can reduce the decomposition rate of
organisms in the environment.
D. It can increase the life expectancy of animals
in the aquatic environment.
Reasons to
build Dams
1. Reserve water
for human
consumption
during summer
and drought.
2. Produce
electricity
through the
use of turbines.
16. A local government is considering
whether to build a dam. Which is an
advantage of building this structure?
A. It can decrease the accumulation of
sediment in the water.
B. It can improve the natural habitat of
plants and animals.
C. It is an inexpensive process.
D. It can create a storage place for water.
Open pit mining
Landslide is large
scale erosion.
an excavation or cut
made at the surface of
the ground for the
purpose of
extracting ore.
Landslide. Other dangers include water pollution, habitat
destruction.
http://news.yahoo.com/utah-avalanche-largest-modern-history-221000689.html
17. What are the Effects of Mining?
Dredging
or
desilting.
A. Landslide and siltation of lakesbodies of water become shallow.
17. What are the Effects of Mining?
B. Deforestation,
destruction of habitat.
17. What are the Effects of Mining?
C. Pollution of lakes and rivers that leads
to fish kills.
18. Why does mining of coal and other
natural resources often result in
environment pollution?
A. Mining pollutes the air near streams.
B. Mining produces acid precipitation near
streams.
C. Mining creates waste material which
can flow into streams.
D. Mining strips the surface of the land
near streams
CO2 and SO2 will combine
with water vapor and fall as Acid Rain.
19. Where would the highest
amounts of acid rain most
likely be found?
A. over the ocean
B. in the forest
C. in urban areas
D. in the mountains
Acid
Rain
SO2
NOX
CO2
Wind
Forest
dies
20. How can other areas be
affected by the pollution of an
industrialized city?
A. Acid rain can precipitate in
other areas.
B. The wind can bring the
pollutants in other places.