N'ime ha, mmepụta gas anyị kwa ọnwa bụ 1000000 PC. Anyị nwere usoro njikwa mma siri ike iji kwe nkwa ịdị mma ngwaahịa anyị. A na-eme akara mmanụ nke isi iyi gas anyị site na ihe eji ebubata. Na e mere site okpukpu abụọ akara ewu. Nnwale oghere na nso nso nke isi iyi gas ruru ugboro 80000.