It is generally accepted, and not only by (1. environment) _________, that there is an urgent need for clean energy sources to replace the world’s diminishing supplies of oil and coal, and to bring about a (2. reduce)_________ in the amount of (3. harm) __________ emissions from power stations. Although solar power which relies on energy from direct (4. sun)_________ is popular in homes as a means of heating water, the most common form of (5.alternate) __________energy is wind power. Modern wind farms, (6. site)_________in the windy areas of the country like Cornwall, consist of modern turbines, which vaguely resemble the old-fashioned (7. wind) _______ that harnessed the power of the wind to grind wheat.
Supporters of wind power are (8. optimism)_________ about the future, saying that wind farms could soon provide 10% of Britain’s energy. It is also less (9. cost) _________ to build a new wind farm than a new coal-fired power station. It is worth remembering that energy (10. conserve) _______ makes sense, as whatever the source, it is cheaper to save energy than to generate it.
