]Ngwa a na-agwọ UV bụ isi iyi na-ekpo ọkụ, ya mere, a na-agbakwunye ihe na-ekpo ọkụ mmiri iji nọgide na-enwe okpomọkụ. Ọ bụ ya mere ị ga-eji na-ahụkarị igwe mmiri na-ekpo ọkụ ka ọ na-eguzo n'akụkụ igwe obibi akwụkwọ akwụ ụgwọ UV.
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