Question

1. which sector of the economy consumes the most energy?

a transportation
b industry
c residential/commercial
d electric power

1. most of the energy consumed in the u.s. is stored in which form of energy?

a kinetic
b thermal
c chemical
d mechanical

1. in which form do all energy flows begin?

a electrical
b chemical
c radiant
d nuclear

1. which of the following is not a primary source of energy?

a petroleum
b natural gas
c electricity
d all of the above

1. which energy source is used to generate the largest percentage of electricity in the u.s.?

a hydropower
b petroleum
c coal
d natural gas

Explanation:

1. The industrial sector consumes the most energy due to manufacturing processes.
2. Most energy in the U.S. is stored as chemical energy (e.g., fossil fuels).
3. All energy flows begin as radiant energy (from the sun).
4. Electricity is not a primary energy source (it's secondary).
5. Coal has historically been used to generate the largest percentage of electricity in the U.S.

Answer:

1. B. industry
2. C. chemical
3. C. radiant
4. C. electricity
5. C. coal