Below Are Listed Some Widely-Used Devices and the Amount of Energy

question 30

Multiple Choice

Below are listed some widely-used devices and the amount of energy they waste. a.Which pair of choices is not correct?

• A)incandescent light bulb - up to 95%
• B)internal combustion engine - 80%
• C)nuclear power plant - 50%
• D)coal-fired power plant - up to 80%
• E)all of these answers

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