Relier Pairs Unit 6_Energy_1Version en ligne Energy par David Tordesillas 1 Geothermal energy 2 Renewable energy sources 3 Sound energy 4 Biomass 5 Water energy 6 Solar energy 7 Light energy 8 Solar, wind, water, biomass and geothermal 9 Wind energy This energy can be natural or artificial It is the most efficient energy and does not cause pollution This energy is the cleanest source of energy This energy can contributes to deforestation and global warming This energy is heat that comes from the centre of the Earth This energy comes from a source that produces vibrations It can damage wildlife habitats and bird populations These sources do not run out when we use them Renewable energy sources