1. Thitirat, Kanoknan, Nam Hoon, Punyanuch

2. -Energy source that have no undesired consequences-

4. Advantage  Wind is free  Does not cause green house gas Disadvantage  Does not produce same amount of electricity all time  Wind turbines are noisy

6. Advantage  Once dam is constructed, electricity can be produced constantly  Does not pollute the atmosphere Disadvantage  Very expensive  Natural environment destroyed

8. Advantage  Infinite supply of energy  Solar energy does not cause pollution Disadvantage  Can be used only when its day time  Very expensive

10. Advantage  Saves release of CO2  Renewable Disadvantage  Expensive  Requires more land

12. Advantage  No pollution  Direct use Disadvantage  May Release Harmful Gases  Transportation

14. Advantage  Lower Greenhouse Gas Emissions  Powerful and Efficient Disadvantage  Non Renewable  Nuclear Radiation

15. Most of the energy are expensive. This is the reason why people didn’t start using these energy even though they help us save the Earth from Global warming.