<prompt> Bhala okuqhubekayo kwalesi sigaba - Ukuchitheka kukawoyela e-Exxon Valdez ngo-1989  <response>: kwenzeka lapho ithangi likaphethiloli i-Exxon Valdez liphuma esikhumulweni sezindiza eValdez ligcwele uwoyela. Ukuchitheka kwenzeka eBligh Reef, eduze kwaseValdez. Nakuba uwoyela ungazange ufike eValdez, wabhubhisa iningi lezinto eziphila olwandle endaweni ezungezile. Ukuhlanzwa kukawoyela kwabangela umnotho waseValdez ukuba ukhule okwesikhashana. 