kynaboo08 kynaboo08

01-12-2020
Biology

contestada

What does 20-20-20 mean??

Respuesta :

yaretzivilla213 yaretzivilla213

01-12-2020

Answer:

-0

lol

Explanation:

Answer Link

panda430 panda430

01-12-2020

Do you mean for your eyes?
Like after 20 min on a screen, look 20 feet away for 20 seconds

Answer Link

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