Which of the following innovators was most responsible for making the United States a world economic power?

A.
Guglielmo Marconi

B.
Samuel Morse

C.
Heinrich Hertz

D.
Andrew Carnegie

Question

Which of the following innovators was most responsible for making the United States a world economic power?
 
 A.
Guglielmo Marconi
 
 B.
Samuel Morse
 
 C.
Heinrich Hertz
 
 D.
Andrew Carnegie

anonymous · Answer

HI

balala · Answer

I believe it is B. Samuel Morse :)

anonymous · Answer

ok can you answer this last question 

Which of the following inventions was not powered by electricity?
 
 A.
telegraph
 
 B.
telephone
 
 C.
internal combustion engine
 
 D.
lightbulb

balala · Answer

I'm pretty sure its C. internal combustion engine...but not sure :P

anonymous · Answer

Ok thanks

balala · Answer

ur welcome hope i could help :D

anonymous · Answer

I have 89% THANKS I PASSED ONLY 1 WRONG

anonymous · Answer

but thats OK

anonymous · Answer

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zenyu · Answer

I know this is late but the first question is certainly not Morse. It's  D. Andrew Carnegie

anonymous · Answer

thanks @zenyu

anonymous · Answer

i jknow this is late but the second one is not c it a

anonymous · Answer

The 2nd one IS c.