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How did Samuel Morse revolutionize communication in the 1800s?
a. He invented the telephone.
b. He proved that steam could power machines.
c. He invented the electric telegraph.
d. He developed alternating current.

Respuesta :

Samuel Morse invented the electric telegraph (before his time, there were optical telegraphs, which functioned within line of sight). Another contribution of his is the Morse Code, a Code used to code letters through the electric telegraph. 
Samuel Morse, who's last name would sound familiar to practically anyone, imvented the electric telegraph. Morse code is named after him, and it is the commonly used code to deliver telegraph messages

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