1) Which one of the statements is true? a) Cost was a big factor in preventing the development of wind power b) Wind power can provide enough electricty for the United States c) Wind power has developed steadily since the 1970s. d) Some US states are powered solely by wind 2) What is the general view of wind energy in the United States? a) very positive b) it will reduce global warming c) it can only provide small amounts of energy d) very negative 3) Which of these factors has not contributed to the reduced cost of wind energy? a) standardisation of design b) state subsidies c) economies of scale d) more efficient maintenance 4) Wind turbine designs ... a) are already very good b) are expected to improve in the future c) will be much more efficient in the future d) are good for the environment 5) Wind energy is more developed in Europe than the USA a) false b) true

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