kynaboo08 kynaboo08
  • 01-12-2020
  • Biology
contestada

What does 20-20-20 mean??

Respuesta :

yaretzivilla213
yaretzivilla213 yaretzivilla213
  • 01-12-2020

Answer:

-0

lol

Explanation:

Answer Link
panda430
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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