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History, 06.05.2021 18:50 Gabby2581

HELPP ASAP PLS what do all signals that are used to communicate have in common ?

a. they all involve light waves

b. they all send information

c. they all use printed words.

d. they all use a series of sounds

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HELPP ASAP PLS what do all signals that are used to communicate have in common ?

a. t...

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