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PwySutPam? - Pennod 6 - Olew

Y gwyddonydd Bedwyr ab Ion Thomas sy'n craffu ar olew, yr hylif tywyll o grombil y Ddaear. Oil is a controversial substance: a powerhouse but also the cause of global warming. W...听

  • Duration15 mins
  • First shown10 Oct 2024
  • Available for 3 months
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