Sizwile okuningi nge isomiso, igama elithi, njengoba iplanethi ifudumala, sisebenzisa kaningi ezindaweni lapho imvula incipha khona. Kepha kusho ukuthini ngempela ukuthi isifunda esithile sibhekene nemiphumela yesomiso? Yimiphi imiphumela lena futhi ingaba namiphi imiphumela?
Ake sihlolisise lolu daba olungasithinta kakhulu kangaka.
Siyini isomiso?
Kuyinto a isimo sezulu esidlulayo lapho amanzi enganele ukuletha izidingo zezitshalo nezilwane, kufaka phakathi abantu, abahlala kule ndawo ethile. Kuyisimo esidalwa ikakhulu ukungabi khona kwemvula, okungaholela kwisomiso samanzi.
Yiziphi izinhlobo ezikhona?
Kunezinhlobo ezintathu, okuyilezi:
- Isomiso sesimo sezulu: kwenzeka lapho lingani -noma lina kancane kakhulu- isikhathi esithile.
- Isomiso sezolimo: kuthinta ukukhiqizwa kwezitshalo endaweni. Imvamisa kubangelwa ukuntuleka kwemvula, kodwa futhi kungadalwa yimisebenzi yezolimo engahlelwanga kahle.
- Isomiso samanzi: kwenzeka lapho imithombo yamanzi ekhona ingaphansi kwesilinganiso. Imvamisa, kubangelwa ukungabi khona kwemvula, kepha nabantu kaningi banesibopho, njengoba kwenzeka nge-Aral Sea.
Unamiphi imiphumela?
Amanzi ayinto ebalulekile empilweni. Uma ungenayo, uma isomiso sinamandla kakhulu noma sithatha isikhathi eside, imiphumela ingaba yingozi. Okuvame kakhulu yilezi:
- Ukungondleki kahle nokuphelelwa amanzi emzimbeni.
- Ukufuduka kwabantu abaningi.
- Ukulimala kwendawo okuhlala kuyo, okuthinta izilwane ngokungenakulungiswa.
- Iziphepho zothuli, lapho kwenzeka endaweni ehlushwa ukugwaduleka nokuguguleka komhlaba.
- Impi iphikisana ngemithombo yemvelo.
Isomiso esiningi senzeka kuphi?
Izindawo ezithintekile empeleni yilezo ze- Uphondo lwase-Afrika, kepha isomiso siyahlupheka nase- Isifunda saseMeditherae California, Peru, futhi ngaphakathi Queensland (Australia), phakathi kwabanye.
Ngakho-ke isomiso singesinye sezimo ezikhathaza kakhulu ezenzeka emhlabeni. Kungokuphatha kahle amanzi kuphela lapho singagwema ukubhekana nemiphumela yawo.