Exercise 3. Fill each gap in the sentences with a suitable word from the box. waste, electricity, water, power, oil, coal, bulb, waves, wind, gas 1. How much____ was mined here? 2. Britain produces 20 million tons of household ____ each year. 3. ____ form as wind blows over the surface of open water in oceans and lakes. 4. Is the____ hot enough for a bath? 5. _____ is the liquid fossil fuel that is extracted from the ground. 6. Do you prefer cooking with electricity or____? 7. We have to change the____, it has gone. 8. Nuclear ____ produces the most efficient and carbon-free source of electricity through steam turbines. 9. ____ energy currently supplies around 2.5% of global electricity consumption produced by the movement of wind turbine blades. 10. ____ is generated in a number of different ways. All of these methods require either a fuel or a flow.