Main Sources of Air PollutionThe air around us is a mixture of many gases and dust particles. The percentages of the various gases present in air areNitrogen (78.08%)Oxygen (20.95%)Other gases (0.97%)Natural processes and, to a larger extent, human activ…

What are the Problems with the Use of Fossil FuelsLimitations of Fossil FuelsScientists at Sandia National Laboratories, New Mexico, have succeeded in producing fuels like petrol and methanol using sunlight and carbon dioxide. The two main limitations of…

Over Extraction of Fossil FuelsFossil fuels are formed from the buried remains of plants and animals over a period of millions of years. Coal, petroleum, and natural gas are some examples of fossil fuels. These fossil fuels are a major part of the world…