Question: Wind turbines are being used to generate electricity in many parts of the United States. One advantage of wind turbines is that no fossil fuels are burned. Which of the following is a disadvantage of wind turbines?

  Options: 
 A. Wind turbines can emit dangerous radiation if damaged.
 B. Wind turbine farms must be located near large bodies of water.
 C. Wind turbines do not produce energy until many years after being built.
 D. Wind turbine farms require a lot of area compared to how much energy they produce. 
Answer: D