Sgwrs gyda'r actor Owain Arthur, a ffeithiau am losgfynyddoedd gan Roy Humphreys. Actor Owain Arthur is in the studio, plus Roy Humphreys talks about volcanoes. Show more
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Sgwrs gyda'r actor Owain Arthur, a ffeithiau am losgfynyddoedd gan Roy Humphreys. Actor Owain Arthur is in the studio, plus Roy Humphreys talks about volcanoes. Show more