Traditional energy sources refer to the natural resources that have been used for centuries to generate power. These include fossil fuels like coal, oil, and natural gas, which are extracted from the Earth and burned to produce energy. These sources are widely used for electricity generation, heating, and powering vehicles. Another traditional energy source is biomass, which comes from organic materials such as wood, crop waste, and animal dung. Biomass can be burned directly for heat or converted into biofuels. While these energy sources have been essential for development, they also contribute to environmental issues like pollution and climate change.