 Inkasta oo aan illaa hadda si cilmiya arrintan loo sugin, haddana waxa ay qaar badan oo khubarada caafimaadka timaha ka mid ahi ku talinayaan in timaha la gaabiyo marka uu dayaxu buuxsamo, ama labada maalmood ee ka horreeya buuxsankiisa 12 iyo 13. 