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Question

How was the telephone different from the telegraph?

The telephone allowed for instant communication over a distance.

The telephone allowed for voice communication over a distance.

The telephone was generally used only in offices.

The telephone was generally used only by trained operators.

Answer

The telephone allowed for instant voice communication over a distance, whereas the telegraph was generally used only by trained operators.

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The telephone was a major advancement over the telegraph in that it allowed for instant communication over a distance, allowing for voice communication rather than the telegraph...