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OpenStudy (anonymous):

Anybody Help? The lightbulb was an innovation of? A: Guglielmo Marconi B: Thomas Edison<--- i think it's him C: Alexander Graham Bell D: Jean Lenoir E: Gustav Eiffel

OpenStudy (anonymous):

B

OpenStudy (anonymous):

yaya thxs!

OpenStudy (anonymous):

@cielosvalentina i have 7 more can u help?

OpenStudy (anonymous):

sure aha

OpenStudy (anonymous):

The internal combustion engine was an innovation of A. Guglielmo Marconi B. Thomas Edison C. Alexander Graham Bell D. Jean Lenoir E. Gustav Eiffel

OpenStudy (anonymous):

D

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