Large amount of energy source especially petroleum products are spent on vehicles and industries to offer goods and gadgets for the world population. As the world population is increasing day by day, the demand for energy is also increasing. However, the petroleum products on earth are limited and one day all of them will be used up. Then what? So, alternative source of energy is necessary to replace and preserve petroleum products that are getting scarce.
Some of the sources of energy do no good to the environment. For instance, petroleum products like coal burnt in the industries release CO, CO2, SO2 and so on. These gases are harmful as they cause global warming, acid rain, breathing problem and so on. For this, energy renewable sources like biomass are taken as a good alternative source of fuel. Also some other efficient alternative source of energy can be explored so that the industry flourishes without much impact on the environment, where people and other organisms dwell upon. In one way, exploring eco-friendly-alternative-source of energy has good cause related to environment.
Some of the alternative sources of energy known to the world are solar energy, wind