Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nzvimbo yakatetepa iri pakati pemakomo eHimalaya nemapani, Bhabar inzvimbo ine ivhu rine makomba rine matombo nematombo akadonha achibva mumakomo. Haikodzeri zvirimwa uye ine masango. Nzizi dzinonyangarika pasi pevhu pano. Pasi peBhabar pane uswa hweTerai neDooars. Pedyo nenzizi pane nyika yeKhadar ine matombo matsva ayo anogona kuzara. Pamusoro pemuganhu wemafashamo, ivhu reBangar ndere alluvium yekare yakaiswa pakati pePleistocene. Kunaya kwemvura pagore kunowedzera kubva kumadokero kuenda kumabvazuva. Nzvimbo dzapasi dzeGanges neBani reAssam dzine miti yakasvibira zvikuru kupfuura nzvimbo iri pakati peGanges. Rwizi rwaGanga rwokumusoro rwakavakirwa muWest Bengal, umo runoyerera rwopinda muBangladesh. Pashure pokubatana neJamuna, mugove weBrahmaputra, nzizi dzose dziri mbiri dzinoumba Delta yeGanges. Rwizi rweBrahmaputra runomuka muTibet sorwizi rweYarlung Zangbo uye runoyerera nomuruwa rweArunachal Pradesh neAssam, rwusati rwayambukira muBangladesh.  Mubvunzo: Inzvimbo ipi isiri yakasvibira kana ichienzaniswa neAssam Valley?
bani repakati reGanga