energy &water resources preaice geography9 th grade
TRANSCRIPT
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ENERGY &WATER RESOURCESPREAICE GEOGRAPHY9TH GRADE
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FUELWOOD IN LEDCS
• IN DEVELOPING COUNTRIES ABOUT 2.5 MILLION PEOPLE RELY ON FUELWOOD, CHARCOAL AND ANIMAL MANURE.
• FUELWOOD AND CHARCOAL ACCOUNT FOR MORE THAN HALF OF THE WORLD’S WOOD PRODUCTION.
• FUEL IS THE MOST IMPORTANT USE OF WOOD IN ASIA.
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FUELWOOD IN LEDCS
THE TRANSITION FROM FUELWOOD AND MANURE TO HIGHER LEVEL ENERGY SOURCES IS PART OF THE PROCESS OF ECONOMIC DEVELOPMENT.
PEOPLE WITHOUT ELECTRICITY 2004SOUTH ASIA 706 MILLION
SUB-SAHARAN AFRICA 547 MILLION
EAST ASIA 224 MILLION
OTHER REGIONS 101 MILLION
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FUELWOOD IN LEDCS
• FUELWOOD IS THE MAIN CAUDE OF INDOOR AIR POLLUTION IN DEVELOPING COUNTRIES.
• RESPONSIBLE FOR 1.5 MILLION DEATHS IN DEVELOPING COUNTRIES EVERY YEAR.
• MORE THAN HALF OF THESE DEATHS ARE OF CHILDERN UNDER 5 YEARS OLD.
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MALI
• LOCATED IN THE SAHEL REGION IN AFRICA
• NORTHERN 65% OF THE COUNTRY IS DESERT OR SEMI-DESERT
• MOST PEOPLE DEPEND ON THE ENVIRONMENT (FARMING-FISHING-HERDING)
• NO FOSSIL FUELS AVAILABLE
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MALI
• IN RURAL AREAS 80% OF ENERGY IS SUPPLIED BY FIREWOOD & CHARCOAL.
• 50 MILLION TONS OF NATIONAL FOREST RESERVES EVERY YEAR ARE USED AS FUEL
• KEROSENE LAMPS, TORCHES AND RECHARGEABLE CAR BATTERIES ARE USED FOR LIGHTING
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MALI
• WOOD CUTTING IS A MAJOR SOURCE OF EMPLOYMENT.
• LESS THAN 12% OF THE POPULATION HAS ACCESS TO FORMAL ELECTRICITY
• IN RURAL AREAS LESS THAN 1 PERCENT OF THE POPULATION HAS ACCESS TO ELECTRICITY
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MALI
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NON RENEWABLE ENERGY SOURCES
• FOSSIL FUELS AND NUCLEAR FUEL ARE NON-RENEWABLE.
• FOSSIL FUELS CONSISTING OF HYDROCARBONS (COAL, OIL AND NATURAL GAS) WERE FORMED BY THE DECOMPOSITION OF PREHISTORIC ORGANISMS IN PAST GEOLOGICAL PERIODS.
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RENEWABLE ENERGY
• RESOURCES THAT CAN BE USED OVER AND OVER AGAIN.
• MAINLY FORCES OF NATURE THAT ARE SUSTAINABLE AND USUALLY CAUSE LITTLE TO NO ENVIRONMENTAL POLLUTION.
• HYDRO-ELECTRIC, BIOGAS, WIND, SOLAR, GEOTHERMAL, TIDAL AND WAVE POWER.
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ENERGY SUPPLY
• OIL: 36%
• COAL: 28%
• NATURAL GAS: 24%
• HYDROELECTRIC & NUCLEAR: 6%
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ENERGY SUPPLY
• ONLY IN THE ASIA PACIFIC REGION THE MAIN SOURCE OF ENERGY IS COAL.
• NATURAL GAS IS THE MAIN SOURCE OF ENERGY IN EUROPE AND EURASIA.
• HEP IS MORE IMPORTANT IN SOUTH AND CENTRAL AMERICA (28%)
• NUCLEAR ENERGY IS MOST IMPORTANT IN EUROPE, EURASIA AND NORTH AMERICA.
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RENEWABLE ENERGY
• HEP IS THE MOST IMPORTANT SOURCE OF RENEWABLE ENERGY
• MAIN PRODUCERS ARE: CHINA, CANADA, BRAZIL AND USA.
• MOST MAJOR SOURCES ARE ALREADY IN USE
• SMALL SOURCES SERVE SAMLL COMMUNITIES
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HEP PROBLEMS
• OBSTRUCTION OF THE RIVER FOR AQUATIC LIFE
• DETERIORATION IN WATER QUALITY
• SUBMERGING LARGE FORESTS WITHOUT PRIOR CLEARANCE CAN RELEASE METHANE GAS.
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SOLAR POWER
• PHOTOVOLTAIC SYSTEMS: SOLAR PANELS THAT CONVERT SUNLIGHT DIRECTLY INTO ELECTRICITY. LEADING COUNTRIES ARE JAPAN,GERMANY AND USA.
• THERMAL POWER PLANTS: MOST OF THESE PLANTS ARE IN THE MOHAVE DESERT IN SOUTHERN CALIFORNIA. SUN RAYS ARE COLLECTED AND TRANSFORMED INTO STEAM THAT DRIVES THE TURBINES.
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SOLAR POWER
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SOLAR POWER
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OTHER ENERGY SOURCES
• WIND POWER: GERMANY LEADING PRODUCER
• BIOMASS: INCLUDES FUELWOOD, ETHANOL AND BIOFUEL.
• GEOTHERMAL: NATURAL HEAT FOUND ON EARTH’S CRUST, IT CAN BE USED TO PRODUCE ELECTRICITY OR ITS HOT WATER CAN BE USED FOR AGRICULTURE, INDUSTRY AND CLEANING.
• USA IS THE LEADER IN GEOTHERMAL ENERGY PRODUCTION.
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NUCLEAR POWER STATIONS
• CHINA HAS MORE THAN 11 NUCLEAR REACTORS.
• A COASTAL LOCATION ALLOWS EASIER COOLING.
• http://www.youtube.com/watch?v=p5ZB6SK88Hc
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