4. What are the four sources of electricity?

The four of electricity are:1. Fossil fuels: These include coal, natural gas, and oil. Fossil fuels are burned to generate heat, which is then used to produce steam and drive turbines that generate electricity.2. Nuclear energy: Nuclear power plants use the heat generated from nuclear reactions to produce steam and drive turbines. This is a low-carbon source of electricity.3. Renewable energy: This includes electricity generated from sources such as wind, solar, hydroelectric, geothermal, and biomass. These sources are considered sustainable and have a lower environmental impact compared to fossil fuels.4. Hydroelectric power: This is a form of renewable energy that harnesses the power of moving water to generate electricity. Hydroelectric power plants use the kinetic energy of flowing water to spin turbines and generate electricity.