Tsarin lambobin na India galibi suna sarrafa fasalullukan agajin agaji na subcontoent. Dangane da haka, sun kasu kashi biyu cikin manyan kungiyoyi biyu:
. koguna na Himalayana; da
. kogunan sannu.
Banda samo asali daga manyan halaye biyu na Indiya, da Himalayan da koguna na Centins sun bambanta da juna ta hanyoyi da yawa. Yawancin kogunan Himalayan su ne perennial. Yana nufin cewa suna da ruwa a duk shekara. Waɗannan koguna suna karɓar ruwa daga ruwan sama har ma da dusar ƙanƙara mai narkewa daga tsaunuka masu yawa. Manyan koguna biyu na Healayana, Indus da Brahmaputla sun samo asali daga arewacin tsaunin. Sun sare ta tsaunin tsaunin. Sun yanke ta hanyar tsaunin suna da kyau. Rivayan Himalayan suna da dogon darussan daga tushensu zuwa teku. Suna yin aiki mai zurfi a cikin manyan darussan su kuma suna ɗaukar nauyin silt da yashi. A tsakiya da ƙananan darussan, waɗannan koguna suna nufin ‘yan ƙasa, Oxbow Lows, da sauran fasali da yawa a cikin ambaliyar su. Suna kuma da ingantattun abubuwan da aka haɓaka (Hoto na 3.3). Yawancin adadin kogunan na cikin lokaci suna yanayi, kamar yadda kwarara suke dogaro da ruwan sama. A lokacin rani, har ma manyan koguna sun rage kwararar ruwa a tashoshinsu. Kogunan goro na Pentins Cavers ba da gajeru da kwarai da gaske idan aka kwatanta da takwarorinsu na Himalyan. Koyaya, wasu daga cikinsu sun samo asali ne cikin tsaunuka na tsakiya da kuma kwarara zuwa yamma. Kuna iya gano irin waɗannan manyan koguna? Yawancin koguna na Pentinsular India sun samo asali ne a Yammacin Ghats kuma suna kwarara zuwa ga Bengal.
Language: Hausa
Language: Hausa
Science, MCQs