Kana tichitaura nezvegungwa, tiri kureva pamusoro pemvura isingaperi yemvura inoiswa munzvimbo dzinodhonzwa dziripo mumunda. Idzi depressions dzinogona kuumbwa kubva kune geological kukanganisa uye na orogenesis. Izvo zvinogona zvakare kuitika nekuda kwekuunganidzwa kwema glacial moraines kana akati wandei echando avalanches. Nhasi tinokuunzira iwo rondedzero ye madhamu makuru pasi rose.
Tichakuudza kuti ndedzipi dzimba dzepasi rose uye ndedzipi hunhu hwadzo.
Gungwa reCaspian
Dziva rinogona kuva nemvura yakachena uye ine munyu. Kuumbwa kwerudzi rumwe nerumwe rwegungwa ndiko kunozivisa hunhu uye mhando yemvura yachagara. Panyaya iyi, tiri kuenda kutaura pamusoro peGungwa reCaspian. Iyo ihurefu iine kuwedzera kwakadaro zvekuti kunoonekwa segungwa. Iine mvura ine hunyoro uye iri pakati peEurope neAsia. Bhiri nekudzika kwe371.000 km2 uye avhareji kudzika kwemamita 170.
Zita rekuti Gungwa reCaspian rakakonzerwa neCaspian. Iri izita reguta rekare iro rakanga rasimukira kumaodzanyemba kwakadziva kumadokero kwegungwa. Iine maruva akawanda nemhuka uye yakapfuma muma sturgeon uye zvisimbiso. Nehurombo, iri igungwa rine makakatanwa mazhinji pakati penyika sezvo iinewo zviwanikwa zvemaminerari senge mafuta negasi rechisikigo uye iri pasi pezvinetso zvinoramba zvichingoitika. Hove uye mvura yepasi rese zvinokonzeresa matambudziko, nekuti kubva pane imwe nzvimbo, hazvizivikanwe kuti manejimendi ane basa rei.
Chikamu chekuchamhembe kwegungwa chinotonhora pamusoro mumwedzi inotonhora uye chinoshandiswa kugadzira kumhanya kwechikepe. Zvinogona kutaurwa kuti chando chine munyu chisingawanzoitika mune chero gomo.
Lake rakakwirira
Icho chimwe che5 Makungwa Makuru eNorth America. Inowanikwa pakati peUnited States neCanada. Iine nzvimbo ye82.000 km2, riri dziva hombe remvura yakachena pasi rose. Iine huwandu hwemvura iyi nekuti kune dzinopfuura mazana maviri enzizi dzinoyerera dzichipinda uye dzichiri kuuchipa.
Zita reLake Superior riri kukonzerwa nenyaya yekuti maChirungu akariisa panguva yekunzvera muna 1760. Raive iro dziva rine huwandu hukuru uye huwandu hwemvura hwavakawana muhupenyu hwavo. Ivhareji tembiricha yemvura iri pamadhigrii manomwe pagore rese. Nguva yechando mugungwa iri hainyanyi kutonhora uye zhizha rinotonhora.
Gungwa reVictoria
Iri dziva hombe riri munzvimbo yepakati-kumabvazuva kweAfrica. Yakakomberedzwa neTanzania, Kenya neUganda. Kureba kwayo kuri 69.482 km2, ichitorwa sedziva rechipiri pakukura remvura isina hunyanzvi papasi, mushure meLake Superior. Rwizi rweKagera ndirwo runoyerera nekuyerera kwakanyanya uko kunoupa kuenderera mberi. Iyo yakadzika dhamu iri 82 metres sezvo iri pamusoro pekushomeka kushoma. Iyo yepakati kudzika ndeye 40 metres nepo 82m ndiyo yakanyanya kuwanda iyo inowanikwa munzvimbo yepakati peakataurwa kushushikana.
Kune zvimwe zvezvakatipoteredza izvo zviri kukonzera kutsakatika kwemarudzi mazhinji ehove nekuda kwekuwandisa. Iyo mvura hyacinth ndechimwe chezvirimwa chiri kupinda nechikepe mugungwa uye chiri kuita kuti riite chepfu. Chimwe chikonzero nei kunaka kwemvura idzi kuri kudzikira kuri nekuda kwekuburitswa kwakawanda kwemarara epamba nemaindasitiri.
Gungwa Huron
Icho chimwe cheGreat Lakes yeNorth America. Ndiyo yechipiri pakukura pamadziva mashanu akarara pakati peUnited States neCanada. Iri dziva rinoganhura Ontario neMichigan kumadokero, imwe yeGreat Lakes. Iyo yepakati kudzika ndeye 59 metres uye yakanyanya ndeye 229 metres. Iyo ndeimwe yemakungwa epasirese ane traffic yakawanda mumabhoti.
Nekuda kwemamiriro ekunze anga ari munyanza iyi, chinhu chakanyanya kugadzikana ndechekuti pakati pemwedzi waZvita kusvika Kubvumbi dhamu rakazara nechando. Izvi zvinoita kuti mvura dzayo dzisapfuurike panguva ino. Mazhinji emabhizinesi anoda zvikepe kuti ayambuke gungwa mabasa avo amiswa.
Gungwa Michigan
Imwe yeGreat Lakes yeNorth America. Yakakomberedzwa neIllinois, Indiana, Michigan, uye Wisconsin. Iyo iri muUnited States zvachose uye ine nzvimbo ye57.750 square km. Iyo yepakati kudzika ndeye 85 metres uye yakanyanya ndeye 281 metres. Inotorwa sedziva rechishanu pakukura pasirese. Iine mahombekombe anozivikanwa muUnited States nekuve nejecha iro rakatosiyana nemamwe ese. Izvi imhaka yekuti vane yakakwira quartz zvemukati uye zvinonzwika kana iwe uchifamba mairi.
Baikal nyanza
El lake baikal Icho chimwe cheakakura kwazvo ari muSiberia. Iye anozivikanwa zvakare nezve kwete, bre de Ojo azul. Kureba kwayo ndeye 5539 km uye nderimwe remakungwa akajeka pasi rese. Iine turbidity diki kwazvo. Yakaverengerwa seNzvimbo Yemagariro Saiti neUNESCO muna 1996 uye ine nharaunda ye 21.494 square km. Ivhareji yekudzika ndeye 744 metres uye iyo yepamusoro ndeye 1642 metres. Sezvauri kuona, yakadzika kupfuura Gungwa reCaspian.
Iri ndiro dziva rakakura kwazvo remvura yakachena muAsia uye rimwe remvura yakadzika pasi rese. Iine mhando dzinopfuura makumi maviri nematatu dzerudzi uye zvinopfuura mazana masere nemakumi masere nemaviri emarudzi emhuka nezvinomera.
Gungwa Tanganyika
Iri nderimwe remadhamu akakura muAfrica yose. Ine hudzamu hwemamita 570 paavhareji uye hurefu hwakanyanya hwemamita 1470. Inotorwa sedziva rechipiri rakadzika pasi rese. Iine huwandu hwakawanda hwehove uye mamwe marudzi emiti nemhuka zvinogadzira mabasa akawanda anosvika makumi mashanu nemashanu. Iyo iri pakati penyika dzeTanzania, Burundi, Democratic Republic yeCongo neZambia.
Ndinovimba kuti neruzivo urwu unogona kudzidza zvakawanda pamusoro pemakungwa akakura kwazvo pasirese. Sezvauri kuona, kune madziva ane kudzika uye pamusoro ayo akafanana nemakungwa chaiwo. Ndinovimba une rombo rakanaka rekufamba uchienda kune dzimwe dzenzvimbo dzinoyevedza uye dzakanaka.