5 THINK GREEN MODULE Unit 5.1 Fuels Renewable and non-renewable energy sources Fossil fuels Petroleum and its derivates Biofuels Syngas Unit 5.2 Energy sources Tipes of energy From energy to electricity Thermoelectric power plants Nuclear power plants Hydroelectric power plants Solar power plant Wind power Other forms of renewable energy production Unit 5.3 A green world Ecology Pollution Air pollution Water pollution 213 MechPower.indb 213 30/01/24 17:09