Author Question: Which of the following has been recognized as the most significant achievement of the twentieth ... (Read 30 times)

iveyjurea

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Which of the following has been recognized as the most significant achievement of the twentieth century by
  the National Academy of Engineering?
 
  a. Solar panels
  b. Wind turbine generators
  c. Nuclear power generation
  d. The US electrical power grid

Question 2

The renewable source that contributes the most to electrical power production in the United States is _____.
 
  a. coal
  b. wind
  c. solar
  d. water



honnalora

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Answer to Question 1

d

Answer to Question 2

d



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