UV rays have only one advantage in comparence with visible rays: they kills much of viruses and bacteries, which can do some problems to us.
But there are some negative influences of UV rays: they can break our scin, eyes...
That's wy I think that UV rays don't have place in our life, exept "solaries"...
What are the advantages and disadvantages of ultra violet rays in our health or on our daily living?
You need some for your body to produce vitamin D. Too much and you risk sun burn and skin cancer.
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