1. THIS PRESENTATION IS ABOUT ENERGY AND ABOUT THE REASONS WHY WE NEED IT. IT SHOWS TWO GROUPS OF ENERGY, ECOLOGICAL SOURCES OF IT AND THE USE OF THEM.

2. WE USE ENERGY TO PRODUCE ELECTRICITY, IN TRANSPORT, TO HEAT THE HOUSES AND TO GIVE LIGHT.

3. THE SOURCES OF ENERGY ARE DIVIDED INTO TWO GROUPS: RENEWABLE (WIND ENERGY, WATER ENERGY, SOLAR ENERGY, GEOTHERMAL ENERGY AND BIOMASS) AND UNRENEWABLE (ENERGY FROM COAL, NATURAL GAS, OIL AND NUCLEAR ENERGY) .

4. Solar energy Wind energy

5. Water energy petroleum

6. IT IS BETTER TO USE ECOLOGICAL SOURCES OF ENERGY, LIKE: THE SUN, WIND, WATER OR EVEN PLANTS, INSTEAD OF NATURAL GAS, COAL AND OIL.

7. TODAY, IN WATER POWER PLANTS, MECHANICAL ENERGY IS TRANSFORMED INTO ELECTRIC ENERGY .

8. WIND ENERGY – GIANT WIND TURBINES PRODUCE ENERGY FROM WIND .

9. THE SUN – SOLAR PANELS PRODUCE ELECTRICITY FROM IT.