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Lisebelisoa tsa litlolo
Lilemong tsa morao tjena, ka keketseho ea kholo ea indasteri, tšusumetso ea motho tikolohong ea tlhaho ea eketseha, e leng se etsang hore tšireletso ea ozone layer e fokotsehe. Matla a mahlaseli a kotsi a fihlang lefatšeng ka khanya ea letsatsi aa eketseha, e leng ntho e sokelang bophelo ba motho ka kotloloho. Bophelong ba letsatsi le letsatsi, molemong oa ho fokotsa tšenyo ea mahlaseli a kotsi letlalong, Batho ba lokela ho qoba ho pepesehela khanya ea letsatsi le ho tsoa ka nako ea mots'eare nakong ea motšehare, ba apere liaparo tse sireletsang, 'me ba sebelisa litlolo tse sireletsang khanya ea letsatsi ka pela ts'ireletso ea letsatsi. Ts'ebeliso ea litlolo tse sireletsang setlolo se sireletsang letlalo letsatsing ke eona e sebelisoang haholo ts'ireletso ea UV, e ka thibela khanya ea letsatsi ho hlohlelletsa erythema le ts'enyo ea ts'ireletso, ho thibela kapa ho fokotsa tšenyo ea DNA, Ts'ebeliso ea litlolo tsa letsatsi le letsatsi e ka thibela tšenyo ea letlalo pele ho mofetše. ketsahalo ya mofetshe wa letsatsi.
