Transcript World Geography Day 13 - Staunton River High School

Brain Boost
-Get out signed Progress Report
-Answer the following questions:
1. What two weather phenomenon occur within the
Ring of Fire?
2. What is the difference between erosion and
deposition?
Review!
What are the two types of processes that shape earth’s
surface?
Ecological and Physical Processes
What weather phenomenon occurs when two tectonic
plates meet and build pressure? Earthquakes
What can be described as a vent through which magma
erupts? Volcanic Eruptions
What is the wearing away of the earth’s surface?
Erosion
What is the deposit of sediment in the process of erosion?
Deposition
Human Impact on the
Environment
What are some ways that humans impact the
environment?
Dams
• Humans build dams to
control the flooding of
rivers and to create
hydroelectric power.
• Examples of manmade
dams: Hoover Dam in
Arizona and Nevada,
Aswan High Dam in Egypt
Canals
• Humans build canals to
connect two bodies of
water, usually resulting
in shorter trade routes.
• Examples of canals:
Erie Canal, Panama
Canal, Suez Canal
Reservoirs
• A reservoir is a place
where humans
collect water for
future use
Irrigation
• Humans often divert (change the direction) water from a river or lake
toward a field being used for agriculture
• Examples: Colorado River is being diverted for the purpose of
irrigating the fields in the southwest United States; the rivers
feeding into the Aral Sea in central Asia are being diverted resulting
in the shrinking of the Aral Sea
Agricultural
Terracing
• In mountainous regions,
humans cut or carve steps
out of the mountainside to
create level areas for the
purpose of agriculture.
• Examples: Rice Terracing in
Chinese Mountains and
Southeast Asia, terracing in
Andes Mountains of South
America
Polders
• In low-lying areas,
humans may “reclaim”
the land from the sea,
which is actually
pumping the water off
the land for the
purpose of agriculture.
• Example: the polders
of the Netherlands
Deforestation
• Humans cut down trees in areas, usually for the purposes
of habitation, agriculture, and the selling of forest
resources. Examples: cutting down of rainforests in Nepal,
Brazil (Amazon Rainforest) and Malaysia
Desertification
• Humans continue to
practice pastoralism. The
animals overgraze semiarid (steppe) areas resulting
in the loss of grasslands in
the areas. As the grasslands
disappear the land reverts
to arid (desert) conditions.
• Examples: the Sahel region
of Africa is shrinking due to
desertification
Acid Rain
• Humans continue to create air pollution in industrialized regions. This
pollution is usually the result of industrial and automotive exhausts.
The pollution is usually acid rain, but can also be in the form of snow,
sleet or hail. Examples: the Black Forest in Germany, forests of
Scandinavia and China, the forest areas of Eastern North America
(especially Boswash-between Boston and Washington D.C.)
Pollution
• Humans contaminate
the environment with
harmful substances in
both industrialized and
under-developed
regions. Pollution can
be in the forms of soil,
water, or air. Examples:
Mexico City, the nuclear
explosion in Chernobyl,
oil spill
Matching Game!
Find your partner or
partners and find a
place to stand in the
classroom
Technological Impact on the
Environment
Technology has expanded people’s capability
to modify and adapt to their physical
environment.
Agriculture
• Use of fertilizers,
advanced farm
machinery
(mechanization)
and pesticides
Energy Use
• The use of nuclear
energy and the
burning of fossil
fuels (coal, natural
gas and oil)
Transportation
• The use of road
building skills to aid
in quicker
transportation,
building of railways
and airports
Automobiles
• The clearing of
forests and
grasslands to
create parking lots
and housing in
suburbs
Airplanes
• The construction of
airports and
expansions to
existing airports,
the problem of
noise pollution
from the airplane
engines
Examples of how technology has expanded the
environmental impact on humans include:
Settlement Patterns
Housing materials
Agricultural Activity
Types of Recreation
Transportation Patterns
Exit Ticket: Examples of how
the environment impacts
humans
Homework: Complete Study Guide and study
for………….
PHYSICAL GEOGRAPHY TEST NEXT CLASS!!!!!!!!