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41 votes
41 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 Kortney
by
2.3k points

1 Answer

24 votes
24 votes

Answer:

d

Step-by-step explanation:

b/c hydrogen fuel cells are uses car energy.

User Osman Rahimi
by
3.1k points