Author Question: Which of the following has been recognized as the most significant achievement of the twentieth ... (Read 37 times)

iveyjurea

  • Hero Member
  • *****
  • Posts: 555
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

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

d

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

For a complete list of videos, visit our video library