<prompt> Pedzisa mutsara unotevera: Huwandu hwemafuta hwakarasika panguva yetsaona hwatangira pamazana mashomanana ematani kusvika kumazana ezviuru ematani semuenzaniso, Deepwater Horizon oil spill, SS Atlantic Empress, Amoco Cadiz. Kudonha kuduku kwakatobvumikisa kuva nemigumisiro mikuru pazvinhu zvipenyu, zvakadai se  <response>: Exxon Valdez kuputsika kwemafuta. 