Verified Answer :

brittanycandace

UV rays can be found In the sun and in tanning beds.
UV rays can cause cancer (skin) if proper skin health is not happening (sunscreen)

I hope this helps you!

AnimeBrainly

UV rays (sunlight) are used in plants during photosynthesis, and helps generate oxygen for us using carbon dioxide that we produce

Humans: 
intake: oxygen
'waste': carbon dioxide

Plants:
intake: carbon dioxide
'waste": oxygen

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