1. Natural Resources and Energy Sources

2. Energy on our Planet
Energy Sources

3. Energy Source
Natural resources are all the resources provided by nature (e.g. oil, forests, faun, metals, solar radiation, etc.) Some are used as energy sources.

4. Energy sources They are divided into three major categories:
Non-renewable resources
Renewable resources
Inexhaustible resources

5. Non-Renewable Resources
Non-renewable resources are found in limited amounts in nature.

6. Non-Renewable Resources
COAL
NATURAL GAS
OIL
NUCLEAR

7. Renewable Resources
Renewable resources do not run out if they are managed in a sustainable manner.

8. Renewable Resources
Hydroelectricity
BIOMASS/BIOFUEL
Tidal Power

9. Inexhaustible Resources
Inexhaustible resources are sometimes considered renewable resources because they will always be available.

10. Inexhaustible Resources
WIND ENERGY
SOLAR ENERGY
GEOTHERMY

11. Uses of the World Energy Sources

12. Non-Renewable Resources
Oil and natural gas
Coal and Nuclear energy

13. Non-Renewable Resources: Oil
Energy Sources
Advantages
Disadvantages
Uses
Oil
-Extensively available.
Easily transported
Air polluting emissions.
Contribution to global warming
Limited reserves
Thermal power plan (electricity)
Gasoline (Fuel)
Heating
Numerous by products: Plastics, asphalt, etc

14. Non-Renewable Resources: Natural Gas
Energy Sources
Advantages
Disadvantages
Uses
Natural Gas
-Extensively available
- Easily transported
Air polluting emissions
Contributions to global warming
Limited reserves
Thermal power plants (electricity)
Fuel
Heating

15. Non-Renewable Resources: Coal
Energy Sources
Advantages
Disadvantages
Uses
Coal
-Extensively available
Easily transported
Air polluting emissions
Contribution to global warming
Limited reserves
Thermal power plants (electricity)
Raw material in the making of cast iron and steel.

16. Non-Renewable Resources: Uranium
Energy Sources
Advantages
Disadvantages
Uses
Uranium
It requires few to produce large quantity of energy
The operating costs of nuclear power plants are low
Produce few air pollutants
Produces radioactive waste.
Management of radioactive waste is technically complex
Risk of technical problems and accidents.
- Production of electricity in nuclear power plants

17. How are fossil fuels used?
Fuel for cars, airplanes.
Heat
Cooking
Electricity
Asphalt
Motor oils and waxes
Plastics
Nylon
Detergents
Pesticides

18. What type of electric power plant pollutes the most?
1st COAL
2nd Heavy Fuel Oil
3rd Natural Gas
4th Nuclear Energy

19. In your opinion, why should we reduce the amount of fossil fuels that we use?

20. Renewable resources
Biomass, Hydroelectricity
Tidal Energy

21. Renewable Resources: Biomass
Energy Sources
Advantages
Disadvantages
Uses
Biomass
Biomass makes it possible to re-use and reclaim waste.
Prevents solid and groundwater body contamination.
Biofuels make it possible to reduce polluting.
The smoke releases large amounts of pollutants that are harmful to the environment.
The cost of biofuels is high.
Source of heat
Biofuels
Electricity production

22. Renewable Resources: Hydroelectricity
Energy Sources
Advantages
Disadvantages
Uses
Hydro-electricity
Replace energy source
Clean energy sources
Few greenhouse-gas emissions
Requires a complex network of transmission line
Visual impact of landscape
Flooding of territories
Destroys part of the diversity.
- Electricity production through run-of-the-river and storage power plants

23. Renewable Resource: Tidal Energy
Energy Sources
Advantages
Disadvantages
Uses
Tidal Energy
- Very few greenhouse-gas emissions
Tidal power must be very strong to produce a significant amount of energy
It is often necessary to flood territories
Disturbs aquatic fauna.
- Electricity

24. In your opinion, why is wood burning heavily used as an energy source in developing countries?

25. Inexhaustible Resources
Wind, Solar rays
Geothermy

26. Inexhaustible Resources: Wind
Energy Sources
Advantages
Disadvantages
Uses
Wind
-In developing countries, wind energy makes it possible to pump water for people and livestock
It provides electricity to remote or isolated areas
Considerably changes the landscape.
Requires strong, regular and constant winds.
This energy cannot be stored
-Electricity production
- Pumping of water for supply and irrigation

27. Inexhaustible Resources: Solar Rays
Energy Sources
Advantages
Disadvantages
Uses
Solar Rays
-Non-polluting
Can be directly used for heating and lighting
Can supply remote regions with electricity
-It is the most expensive way of producing electricity
-Requires an additional energy source to ensure a constant energy supply.
Direct lighting
Direct heating
Electricity production (through solar panels)

28. Inexhaustible Resources Geothermal
Energy Sources
Advantages
Disadvantages
Uses
Geothermy
- Geothermal power plants produce few greenhouse gases
- Regions with high geothermal potential are usually areas with active volcanoes
-Electricity production through geothermal power plants.
- Heating of buildings.