<prompt> Pedzisa mutsara unotevera: Kwemakore anopfuura 50, paiva nekudonha kwemafuta gore negore muNiger Delta, asi hapana zvaiitwa kuti kudonha uku kudziviswe. Kusvibiswa kwacho hakuna kumbobvira kwacheneswa, nokudaro kuchisiya mvura isinganwi, nyika dzisingabereki uye dzichikonzera rufu rwemhuka dzomusango noupenyu hwemumvura. Mamiriro acho ezvinhu akaenzaniswa ne  <response>: BP yakadurura mafuta muGulf of Mexico. 