Ngā Pūrongo Ahumahi
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He aha te Tānga UV
Ko te tānga UV he momo tānga matihiko e whakamahi ana i ngā rama ultra-violet hei whakamaroke, hei whakaora rānei i te waituhi i te wā e tāia ana. I te tohatohanga o te waituhi e te pūreretā ki te mata o tētahi rauemi (e kiia nei ko te "papa"), ka whai tata mai ngā rama UV kua hangaia mōna, hei whakaora – hei whakamaroke rānei – i te waituhi i...Pānuihia atu