The use of which energy source gave rise to growth of the US transportation industry in the 1800s, resulting in more people being able to migrate to new areas of the country?
Ethanol
Petroleum
Coal
Natural gas

Question

The use of which energy source gave rise to growth of the US transportation industry in the 1800s, resulting in more people being able to migrate to new areas of the country? ﻿
 Ethanol ﻿
 Petroleum ﻿
 Coal ﻿
 Natural gas

anonymous · Answer

@tafkas77

anonymous · Answer

Could you eliminate any of these? I see some!

anonymous · Answer

ethanol and natural gas those two eliminate

anonymous · Answer

Perfect. Those were the ones I'm talking about! :) Now let's look at those other options, shall we? Well, petrol - what is that used for, commonly? I can list a few... cars, airplanes.... Hmmm... Coal was commonly used to fuel trains, ships, and to keep people warm... Look at the time frame this question is speaking about. Which could be eliminated, coal or petrol?

anonymous · Answer

coal

anonymous · Answer

Are you sure? Maybe you could look at it again? 

Petrol is used for cars and airplanes. 
Coal is used for ships and trains. 

Which technology was more available in the 1800s?

anonymous · Answer

oh i see so it coal

anonymous · Answer

Yes. The answer is coal. :) Do you get this topic, now? I have to leave in a minute, but I will be glad to explain this question a little more if you need it.

anonymous · Answer

yes i got it now thank you

anonymous · Answer

You're welcome! :D