Umjikelo wamanzi endalweni

Biosphere iplanethi zivezwa umbutho uqweqwe iqokobhe. imida yayo ikakhulu zilawulwe ubukho yentsimi ebomini. Le nto iye iqokobhe owahlukeneyo physico-imichiza kuqamba. Live, biogenic, thinta, bioinert, a radioactive into, into indalo yesiqalo, i-atom saa - oku yintoni eyenza i biosphere. Umehluko omkhulu phakathi kweqokobhe kumgangatho ophezulu mbutho.

Umjikelo wamanzi ehlabathini ngenxa impembelelo amandla elanga. emaphikweni alo phezu kumphezulu womhlaba, ngokudlulisela H2O lalo lamandla ombane, amalahle, kwaye iguqulelwa ngomphunga. Isondlo, unikwe umyinge eliphezulu ngumphunga ngeyure, iminyaka eliwaka isibini ukuya zonke ulwandle.

zendalo zenza imiqulu emikhulu ulwelo esesibhakabhakeni udlulise kuzo mgama noko elide waza wabuyela emhlabeni ngohlobo kwezulu. Umbilo, ziwe emhlabeni, angene emlanjeni. Awela ulwandle.

Ukwahlula umjikelezo wamanzi ezincinane nezinkulu. Small ngenxa kwemvula elwandle yehlabathi. umjikelezo wamanzi Large ezinxulumene nayo kwezulu komhlaba.

nyaka ngamnye uphalaze emhlabeni malunga nekhulu lamawaka cubic metres yamanzi. Ngenxa kuye niwuzalise amachibi, imilambo, ulwandle, ukufuma nazo lingena singene ematyeni. Inxalenye ethile yale manzi umphunga, abanye - ubuyela ezilwandle. A isixa esithile kusetyenziswa izinto kunye zityalo ukukhula kunye nesondlo ophilileyo.

Umjikelo wamanzi ikhuthaza ukuxovwa kwezindlela kunye zendalo eziphila ezisentlabathini. Ukusondela kwindawo Ocean kukuthi, imvula iwela. Ngamanzi sushi uqhubeka esiza emva elwandle. Isixa esithile komphunga, ingakumbi kwiindawo amahlathi. Inxalenye ukufuma eqokelelwe emilanjeni.

Umjikelo wamanzi kufuna isixa esikhulu wamandla. yonke inkqubo wachitha malunga nesinye kwisithathu yonke ubuninzi ifunyenwe ukusuka elangeni. Phambi kuphuhliso impucuko yaba lizama umjikelo wamanzi: ulwandle yawa amanzi kangangoko umphunga. Xa imozulu rhoqo akuyi kuba shallowing imilambo namachibi.

Ngophuhliso impucuko, umjikelo amanzi uphazanyiswe. izityalo Ukunkcenkceshela khuthaza ukwanda ngumphunga. Kulo mmandla osemazantsi kwakukho shallowing ebalulekileyo yemilambo. Ngoko ke, kule minyaka engamashumi edlulileyo, i Amudarya kunye Syrdarya wabavelisela namanzi encinane kakhulu kwi Sea Aral ngenxa yokuba amanzi, ukuba zehla nazo kakhulu. Kunye nale imbonakalo umboniso ioli phezu kwamanzi iilwandle kuncitshiswa hexa.

Zonke ezi zinto zibe nefuthe elibi ngobume ongqonge umhlaba onokuphila. Oku kuchaphazela kuphela kwimimandla ekumzantsi. iinguqu ezinkulu ziyaziwa kwimimandla esemantla. Okunye njalo kwiminyaka yakutshanje wokubalela zenzeka, nepokotho ukusekwa ziintlekele zendalo. Ngokomzekelo, eNtshona Yurophu kule minyaka yokugqibela emithathu okanye emine ehlotyeni kuba kushushu kakhulu. Ngoxa elidlulileyo imozulu kule mimandla ibithambile kakhulu. Ngenxa yoko, ukwanda ngokugqithisileyo kwamaqondo akholisa ukubakho imililo zentsimbi.