Likhetho tse 4 tse ncha bakeng sa lisebelisoa tse tala tsa polasetiki tse thehiloeng ho bio: letlalo la tlhapi, likhetla tsa peo ea mahapu, likoting tsa mohloaare, tsoekere ea meroho.Lefatšeng ka bophara, ho rekisoa libotlolo tsa polasetiki tse limilione tse likete tse 1,3 letsatsi le leng le le leng, 'me eo ke ntlha ea bohlokoa ea lipolasetiki tse entsoeng ka petroleum.Leha ho le joalo, oli ke mohloli o lekanyelitsoeng, o ke keng oa nchafatsoa.Hape...
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