<prompt> Ramba uchiverenga ndima ino - Muna 2007 mushumo weUnited States Environmental Protection Agency pamusoro pekudonha wakawedzera kukura kunofungidzirwa kwenzvimbo yakasvibiswa uye huwandu hunofungidzirwa hwekudonha kusvika, zvakapetwa katatu kudarika Exxon Valdez kudonha  <response>: . Mushumo wacho wakatsoropodzawo nhamburiko dzokudzorera uye kunonoka kuchangobva kuitika kwokuchenesa. 