214k views
0 votes
21. Which of the following can help increase energy efficiency in the

transportation industry?
a. Cogeneration
b. smart meters
c. LEED certification
d. hydrogen fuel cells
e. molten salt systems

User VahidShir
by
2.8k points

1 Answer

5 votes

Answer:

d

Step-by-step explanation:

b/c hydrogen fuel cells are uses car energy.

User Helen Araya
by
3.6k points