asked 166k views
5 votes
Successful attempts to make the internal combustion engine more efficient in the 19th century resulted in an increase in the demand for

A) coal
B) iron ore
C) petroleum
D) arable land

asked
User GDroid
by
8.6k points

2 Answers

3 votes
That would be C) Petroleum.
answered
User Rahul Pamnani
by
7.6k points
3 votes
The answer to your question is C. petroleum
answered
User MKroehnert
by
7.8k points
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