Moreover, fossil fuels are non-renewable resources. They are used in the production of energy, and have been consumed at increasing rates in recent history. Examples of fossil fuels are coal, natural gas, and oil. All three of these are available in a fixed supply, and are being rapidly depleted. However, it took until the beginning of 20^th century for coal to replace wood as the dominant source of fuel for the new industrial economy. And now by using coal, it is much easier and cheaper as well as better source of energy compare to wood. Within ten years, oil and natural gas replaced coal. These fossil fuels are cleaner than coal and easy for transport. Oil can be used when liquid fuel is needed. For the drivers, they are encourage go to solar to reduce your dependence on fossil fuels. Solar power can be expensive to install, but as it grows in popularity, the price of the technology is falling as it becomes more widely adopted. For instance, in college there are many students, and majority of them are from Klang or stay nearby. Hence, to reach the destination together by carpool could help to reduce the use of fossil fuel too. Another method of reducing fossil fuel is turn off the light and electric appliance when we are not using it.