Question

As steel replaced iron, people also began looking for new fuels. Which of the following fuels became popular in the late nineteenth century?

A.
wood

B.
petroleum

C.
coal

D.
nuclear energy

Answer 1

@bohotness

Answer 2

@Legends

Answer 3

@BlossomCake

Answer 4

@EclipsedStar

Answer 5

@YOLO_KING

Answer 6

I am leaning towards petroleum.

Answer 7

i have no clue what the answer is ore could be

Answer 8

What do you think it is?

Answer 9

no clue :/

Answer 10

It would be petroleum because http://en.wikipedia.org/wiki/History_of_the_petroleum_industry_in_the_United_States

Answer 11

ok thanks