Iplanethi enguMhlaba yaziwa ngamanye amagama njengeplanethi eluhlaza okwesibhakabhaka. Iwukuphela kweplanethi eyaziwa manje endaweni yonke enezinto eziphilayo. Lokhu kungenxa yokuthi ikude kakhulu nelanga ukuze isekele amazinga okushisa angakwazi ukusekela ukuphila ngendlela esikwazi ngayo. Nokho, abantu abaningi bayazibuza Kungani uMhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka?.
Kulesi sihloko sizokutshela ngezizathu eziyinhloko zokuthi kungani uMhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka.
Kungani uMhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka?
Umhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka ngenxa yobuningi bawo bamanzi, angabonakala endaweni enkulu eluhlaza okwesibhakabhaka. Indawo yoMhlaba icishe ibe amakhilomitha-skwele ayizigidi ezingama-510, ngaphezu kwama-70% awo ambozwe ngamanzi. Umbala oluhlaza okwesibhakabhaka uwuhlukanisa kwamanye amaplanethi anjengeMars, Mercury, Jupiter, Uranus, njll.
Amanzi amaningi kule planethi eluhlaza okwesibhakabhaka ayiqhwa noma anosawoti, futhi ingxenye encane kuphela efaneleka ukusetshenziswa ngabantu. Izilwandle eziyinhloko i-Atlantic Ocean, iPacific Ocean, i-Indian Ocean, i-Arctic kanye ne-Antarctic. Ukuze ufunde kabanzi mayelana nalezi zidumbu zamanzi, ungafunda mayelana amanzi kwamanye amaplanethi namasathelayithi.
Nakuba ukujula kolwandle kuhluka ezindaweni ezahlukene, ingxenye enkulu yeplanethi yethu ayikaze ihlolwe ngoba ilele ekujuleni kolwandle. Kusenzima kakhulu kubantu ukuthi basebenzise bonke ubuchwepheshe babo ukuze babufunde buphelele. Ngaphezu kwalokho, ungathola okwengeziwe mayelana nokuthi izilwandle zakha kanjani le ndatshana ethokozisayo.
Lolu ketshezi olubalulekile luningi kuphela eMhlabeni, futhi akunakwenzeka ukuthola izimpawu zokuba khona kwazo kunoma yiluphi uhlobo lwesimo somzimba ohlelweni lwethu sonozungezilanga. Ngokocwaningo olwenziwe kuze kube manje, ayikho enye iplanethi enezilwandle nomoya-mpilo owanele wokusekela ukuphila.
Umbala oluhlaza wezilwandle
Umhlaba unezilwandle ezinhlanu eziyinhloko: I-Pacific Ocean, i-Atlantic Ocean, i-Indian Ocean, i-Antarctic Ocean kanye ne-Arctic Ocean. Iplanethi yethu ivela emkhathini iyindilinga enkulu egcwele imibala ehlukahlukene eluhlaza okwesibhakabhaka, eyakhiwe yizo zonke lezi zilwandle, ngayinye inombala ohlukile nomlingiswa. Ukuze uthole ulwazi olwengeziwe mayelana namaplanethi nezici zawo, ungathintana imibala yamaplanethi esimiso sonozungezilanga.
Lesi isizathu esiyinhloko esenza uMhlaba uqale ukubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka, nokho, kwakungewona amanzi awanika lowo mbala. Amanzi awanawo umbala, futhi nakuba kucatshangwa ukuthi abonisa umbala wesibhakabhaka, abonakala eluhlaza okwesibhakabhaka kuphela ngenxa yobuningi bamanzi, futhi i-spectrum yokukhanya kuba nobunzima bokudlula kuwo, njengoba kunjalo ngolwandle. Imvelo yendlela esibona ngayo umbala nayo ingenxa yobude begagasi bokukhanya, okuyisihloko esithakazelisayo ongasihlola ngokuqhubekayo. lesi sixhumanisi.
umbala wamaza
Okubomvu, okuphuzi noma okuluhlaza kunamaza amade kunombala oluhlaza okwesibhakabhaka, ngakho ama-molecule amanzi awamunca kalula. Okuluhlaza okwesibhakabhaka kunobude obufushane, ngakho-ke uma kunamanzi amaningi endaweni yokukhanya, kuzovela okuluhlaza okwesibhakabhaka. Kungashiwo ukuthi umbala wamanzi uhlobene nokuqina kokukhanya, futhi kwezinye izindawo kuvame kakhulu ukuthi umbala wamanzi ushintshe ube luhlaza.
Lokhu kuhlobene nokuba khona kolwelwe, ukusondela ogwini, ukuba mahlukumezi kolwandle ngaleso sikhathi, kanye nezinsalela ezihlukahlukene ezivame ukutholakala emanzini ezigqamisa umbala ngaphezu koluhlaza okwesibhakabhaka nje. Ukuze uqonde kangcono lezi zenzakalo zemvelo, vakashela lesi sihloko kungani ulwandle lushintsha umbala.
Kuyaziwa futhi ukuthi i-phytoplankton, amagciwane ahlala emanzini anesibopho sokuhlinzeka cishe ingxenye ye-oxygen ephefumula abantu, ngokwengxenye inembangela yokushintsha kombala emanzini. I-Phytoplankton iqukethe i-chlorophyll futhi itholakala ezindaweni ezingashoni kakhulu emzimbeni wamanzi ukuze ithwebule ukukhanya okuningi ngangokunokwenzeka. Lapho zonke zigxile endaweni eyodwa, ulwandle luba luhlaza kakhulu esikhundleni sombala oluhlaza okwesibhakabhaka.
Kungani umhlaba uluhlaza okwesibhakabhaka uma ubonwa emkhathini?
Umhlaba wawungahlali uluhlaza okwesibhakabhaka, empeleni, ushintshe kakhulu phakathi nezigidi zeminyaka okhona. Ekuqaleni, ukwakheka komkhathi womhlaba kwakuhluke kakhulu kulokho okuyikho namuhla: umkhathi owenza isibhakabhaka, uMhlaba, noma Umhlaba kubonakale kuluhlaza okwesibhakabhaka emkhathini. Ukuqhuma kwentaba-mlilo okungapheli emhlabeni wethu kukhiphela umhwamuko omningi emoyeni, ogcina ubumba izilwandle njengoba uzinza.
Kulezo zilwandle, ulwelwe lwaqala ukuzalwa futhi lwanda. Zidla isikhutha futhi zikhiqize umoya-mpilo. Uma sicabangela ukuthi i-carbon dioxide yayichichima kakhulu ngaleso sikhathi nokuthi zazingekho izilwane ezidla umoya-mpilo, ukwanda kolwelwe emakhulwini eminyaka adlule kwakwazi ukushintsha ukwakheka komkhathi waze wafinyelela emazingeni afana nalawa esinawo namuhla. .
Iqiniso liwukuthi uma sibheka isibhakabhaka emini siluhlaza okwesibhakabhaka, Kwenzeka okufanayo lapho sibuka umhlaba usemkhathini, umkhathi womhlaba usinikeza umbala oluhlaza okwesibhakabhaka. Lokhu kuhlobene kakhulu nokwakheka komkhathi wethu kanye nethiyori yokukhanya. Ukuqonda le mibono kungakusiza futhi ukuthi uqonde kangcono i-blue planet phenomenon.
Umthombo wokukhanya emhlabeni wethu yilanga. Inkanyezi ikhipha izinhlobo ezahlukene zokukhanya esingakuhlanganisa ukuze sikuthole njengokukhanya okumhlophe. Ukuze sifike kwethu iplanethi emizuzwini engu-8 ngemva kokushiya ilanga, lokhu kukhanya kufanele kuqale kudlule izingqimba ezihlukene zomkhathi wethu. Njengoba sishilo, kunama-molecule ahlukene akha umkhathi wethu, kodwa kuwo wonke la ma-molecule, eyinhloko i-nitrogen. Isici sama- molecule e-nitrogen ukuthi lapho ethola ukukhanya, aphinde akukhiphe kwenye indawo kuye ngobude begagasi bokukhanya.
Lapho ukukhanya kufinyelela emkhathini, imisebe emide (ebomvu, eluhlaza, nephuzi) ishaya phezulu noma iphinde ikhishwe emkhathini, kuyilapho imisebe emifushane eluhlaza okwesibhakabhaka iboniswa futhi ihlakazeke. Ngakho-ke, sicabanga ukuthi isibhakabhaka siluhlaza okwesibhakabhaka.
Kusukela nini uMhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka?
Eqinisweni, isidlaliso seplanethi eluhlaza okwesibhakabhaka sakamuva, okunengqondo uma sicabanga ukuthi akukapheli isikhathi eside ukuthi sikwazi ukubona ukubukeka koMhlaba emkhathini. Iqiniso liwukuthi leli gama wenza ingcebo ngeminyaka yawo-1960 nawo-1970, waduma, futhi usesakazwa kuze kube namuhla.
Ngaleso sikhathi, umhlaba wawuhlukaniswe waba izinhlangano ezimbili ezinkulu zezombangazwe nezomnotho, inkambi yonxiwankulu eyayiholwa yi-United States kanye nenhlangano yamaKhomanisi eholwa yiSoviet Union. Lesi sikhathi emlandweni saziwa ngeMpi Yomshoshaphansi ngoba nakuba kungekho ukungqubuzana okuqondile, la mazwe womabili ashayisana kuzo zonke ezinye izimo. Phakathi nale minyaka kwenzeka lokho okubizwa ngokuthi umjaho wasemkhathini, lapho womabili la mazwe azama khona ukuba ngabokuqala ukwenza uhambo lwasemkhathini olwenziwa abantu nokuhlala eNyangeni.
Iqiniso liwukuthi ama-cosmonauts aseRussia naseMelika aqala ukuphuma emkhathini wethu futhi abheka uMhlaba aqaphele ukuthi kusukela "lapho" iplanethi yethu ibukeka njengendilinga enkulu eluhlaza okwesibhakabhaka, iyiplanethi eluhlaza okwesibhakabhaka.
Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi ngokuthi kungani uMhlaba ubizwa ngokuthi iplanethi eluhlaza okwesibhakabhaka.
