Iilwandlekazi zehlabathi

amanzi Natural bobabo inxalenye enkulu phezu uMhlaba, kunye neelwandle kunye neelwandle ehlabathini ezisemanzini abahlala malunga ne-97% (okanye malunga nama-70% yabo bonke kumphezulu Umhlaba). Le ndawo eseleyo bobabo amanzi nasemilanjeni, amachibi, amadama, imigxobhozo, ezihambayo.

Pacific, Atlantic, Arctic kunye Indian - neelwandlekazi zehlabathi, ebizwa zizazinzulu de 2000. Ukususela ngo-2000, xa inxalenye Southern ye-Arctic eyedwa njenge Ocean yesihlanu.

Olona lwandle lunzulu ehlabathini kunye elikhulu - Pacific. Kuye indawo enkulu ngaphezu indawo ilizwe emhlabeni, kodwa ezinzulwini yayo indawo zinzulu Emhlabeni - Mariana Trench. amaza Ocean ahlambe kunxweme olusentshona uMntla noMzantsi Merika, eOstreliya, kwimpuma ka-Asia. E Northern saseNtla idibanisa kunye Arctic Ocean ngokusebenzisa i wethu Strait, kunye kumazantsi - ifikelela unxweme Antarctica. abaninzi kakhulu elunxwemeni ukuba bahambe ezindulini kunye iintaba, yaye ngaphakathi amanzi alo inani elikhulu iziqithi.

Ngokwendalo, zonke iilwandle behlabathi abe umlinganiswa eyahlukileyo kakhulu. Ngoko ke, kufanele kuphawulwe ukuba i- Pacific Ocean idume tsunami rhoqo ukuba ukufikelela elunxwemeni ezinye eemitha amahlanu ubude, kwakunye nomba wokuba okubangela ukuba ngaphezu kwesiqingatha biomass lilonke ezinzulwini zasemanzini.

Le yesibini ngobukhulu lo Atlantic Ocean. emazantsi layo kunokuba nzima, nezitya ezininzi. Ngokungafaniyo Pacific, i-Atlantic ayikho amanzi alo ziqithi amaninzi kangaka. Kule ngasentla ihlangabezana Arctic Ocean. Atlantic eyaziwa ngokuba ummandla emifuleni kuyo, okuninzi kummandla yemilambo aqukuqelayo kuyo nayiphi na enye olwandle. Ngaphezu koko, akukho kunxweme lungqamane kakhulu kwaye zihlanjwe inani elikhulu ngamaza ezaziwayo kweelwandle.

Olwandle zehlabathi, njengoko kucacisiwe apha ngentla, kubandakanya nabo abanda: Arctic. Sikhoyo kumntla weArctic Circle. Phantse yonke indawo layo ligutyungelwe by ice phantse unyaka wonke. Ocean amanzi ngobuchule kubaluleke kakhulu, ngenxa yokuba ukuvumela ukuba emke eMelika eRashiya yi endleleni imfutshane. Ingakumbi lweenkcukacha ezibalulekileyo ngamaxesha emfazwe. Kufutshane kunxweme beelwandle Arctic ngeendlela ezininzi, uhamba kunye Atlantic kunye Pacific Oceans. Ngenxa lobushushu rhoqo ephantsi, izityalo kunye nezilwanyana yamanzi alo imelwe ziintlobo ezimbalwa.

Amanzi Indian Ocean zezethu ndawo inkulu yesithathu. Kuyinto kufutshane Afrika kunye Australia, Asia and Antarctica. amanzi ayo uhlambe ngobukhulu Madagascar kunye eSri Lanka, yaye wayethanda ngabakhenkethi ezininzi Maldives, Seychelles, Bali. amaza alo, olephuzayo ngendlela umbhobho ofanelekileyo, abaziintanda Surfers ezininzi umhlaba ongaphantsi walo iidipozithi esisityebi kunene yerhasi yendalo, ioli.

Njengoko sele kukhankanyiwe, phakathi elwandle emhlabeni baye baqala ukuba iquke i-Southern Ocean. Kungenjalo, ibizwa ngokuba yi-Antarctic. amanzi alo, zingubo lwaseYurophu Antarctica, iquka inxalenye esemazantsi amanzi Pacific, Atlantic namaLwandlekazi Indian. Ukuziqhelisa, igama ukuqhutywa amanzi phantse akazange unamathele, kuba akukho ifakiwe na iimanyuwali kwi izihloko ezifanelekileyo. Ngelo xesha, kule ndawo yalo ummandla wamanzi ubekwa kwindawo yesine phakathi kwabo bonke ulwandle.