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Mathematics 10 Online
OpenStudy (anonymous):

_____ are replacing electric wires in communications systems such as telephone systems.

OpenStudy (matt101):

Fibre optics. Either that or telepathy...

hero (hero):

Telepathy

hero (hero):

Phones were invented to ruin humanity's ability to communicate telepathically

OpenStudy (anonymous):

thanks ppl!!!!:D

hero (hero):

But to be on the safe side, just put Fiber Optics

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