Question 1

-Given the fact that all of the nuclear energy shown in the figure is used for producing electricity, approximately what portion of the energy consumed in the U.S. is used for producing electricity?

Accepted Answer

A)  34% 
B)  44% 
C)  19% 
D)  62% 
E)  8.6

Question 2

A major disadvantage of solar power is _.

Accepted Answer

A)  the uneven distribution of sunshine around the world 
B)  antiquated and unreliable technology 
C)  lack of knowledge about long -term economic impacts 
D)  its efficiency level compared to other types of power 
E)  decentralization of control of electrical energy

Question 3

Which of the following methods is considered a type of passive solar energy collection?

Accepted Answer

A)  ocean thermal energy conversion (OTE
C)  
B)  rooftop flat -plate solar collectors 
C)  photovoltaic cells 
D)  using heat -absorbing construction materials 
E)  rooftop solar panels

Question 4

An average household uses about 10,000 kilowatt -hours of electricity annually. How many tons of carbon dioxide would be produced if the household's electricity were generated using only conventional energy sources?

Accepted Answer

A)  2,800,000 
B)  1,400,000 
C)  700 
D)  70 
E)  7

Question 5

A solar cooker is an example of .

Accepted Answer

A)  OTEC technology 
B)  passive solar technology 
C)  active solar technology 
D)  concentrated solar power 
E)  a hydrogen fuel cell

Question 6

-The data in the figure reflect energy use in the U.S. in 2015. In 2012, renewable energy composed 9.3% of total energy consumed in the U.S. If the trend from 2012 to 2015 continues, in approximately what year will renewable energy account for 20% of total energy consumed in the U.S.?

Accepted Answer

A)  2081 
B)  2050 
C)  2115 
D)  2065 
E)  2097

Question 7

Which two nations account for almost half of the global production of wind power?

Accepted Answer

A)  U.S. and China 
B)  Bangladesh and Swaziland 
C)  U.S. and Canada 
D)  U.S. and Germany 
E)  China and Russia

Question 8

Wind turbines kill more birds than which of the other major causes of bird mortality?

Accepted Answer

A)  cats 
B)  pesticides 
C)  towers 
D)  collisions with windows 
E)  All of these kill more birds than are killed by wind turbines.

Question 9

The current practice of geothermal power generation may not always provide a practical renewable energy source because _ _.

Accepted Answer

A)  in some cases, the heated groundwater is used much faster than it is recharged 
B)  power plants have high maintenance costs 
C)  geologically heated groundwater is unsuitable for these plants and must be purified first 
D)  in some instances, pollution emissions can be very high 
E)  in many cases, the magma is used faster than it is recharged

Question 10

Wind energy has been harnessed for hundreds of years to .

Accepted Answer

A)  heat and cool houses 
B)  drain water from land so it can be farmed 
C)  generate electricity 
D)  regulate climate 
E)  pump water and grind grain

Exam 21: How to Interpret Graphs