Kalmar magudanar ta bayyana tsarin kogin. Kalli taswirar jiki. Za ku lura cewa ƙananan koguna suna gudana daga daban-daban-daban zuwa babban kogin, wanda a ƙarshe ya ruwaita cikin babban jikin ko teku ko teku. Yankin da aka zana ta hanyar tsarin kogi guda ana kiranta da kwando malaluage. Dubawa kusa da taswira zai nuna cewa duk wani yanki da aka ɗaukaka, kamar tsauni ko na sama, raba kwanasan magudanar ruwa. Irin wannan juzu’i an san shi azaman ruwa Language: Hausa
Language: Hausa
Science, MCQs