3 · Hankula
Me ke da rayuwar ciki?
Idan an zana duniya da ƙarancin bayani, hankula na iya zama mafi wahalar kwaikwayo. Akwai mutane biliyan 8.2, kowannensu da jijiyoyi kusan biliyan 86. Dabbobi sun fi haka yawa nesa ba kusa ba. Kwari kaɗai kusan quintillion goma ne, wato 1019.