Saboda yawan amfani da iskar oxygen daga dukkan kwayoyin halitta, yawan wannan gas din yana ci gaba da raguwa, saboda haka dole ne a sami wadatar iskar oxygen koyaushe. Wannan burin shine sake zagayowar oxygen. Wannan hadadden tsarin nazarin halittu ne wanda yanayi da sararin samaniya suka canza ozone. Ta yaya irin wannan sake zagayowar yake, muna ba da shawara don bincika a cikin wannan labarin.
Tsarin ra'ayi
Daga cikin sararin samaniya, lithosphere, abubuwan da ke cikin kasa da hydrosphere, akwai musayar kowane irin sinadarai. Mu'amala tana faruwa ba fasawa, yana gudana daga mataki zuwa mataki. Duk tsawon tarihin wanzuwar wannan duniya tamu, irin wannan mu'amala tana gudana ba tare da tsayawa ba kuma yana ci gaba tsawon shekaru biliyan 4.5.
Za'a iya fahimtar ma'anar kewayawa ta hanyar ishara zuwa irin ilimin kimiyya kamar ilimin ƙasa. Wannan kimiyyar tana bayanin wannan mu'amala da mahimman dokoki guda huɗu, waɗanda aka gwada kuma aka tabbatar da su ta hanyar gwaje-gwaje fiye da sau ɗaya:
- ci gaba da rarraba dukkanin abubuwan sinadarai a cikin bawon duniya;
- ci gaba da motsi a cikin lokaci na dukkan abubuwa;
- bambancin kasancewar nau'uka da siffofi;
- mamayar abubuwa a cikin jihar da ta watse, kan abubuwanda aka hade a hade.
Irin waɗannan hawan keke suna da alaƙa ta kusa da yanayi da ayyukan ɗan adam. Abubuwan da ke tattare da kwayoyin halitta suna hulɗa tare da waɗanda ba su dace ba kuma suna samar da ci gaba mai zagayowar biochemical wanda ake kira sake zagayowar.
Oxygen sake zagayowar a cikin yanayi
Tarihin gano lemar sararin samaniya
Har zuwa 1 ga watan Agusta, 1774, ɗan adam bai san da kasancewar oxygen ba. Muna bin diddigin binciken ne ga masanin kimiyya Joseph Priestley, wanda ya gano ta ta hanyar narkar da sinadarin mercury a cikin wani jirgin ruwa da aka rufe ta, wanda ya tattara hasken rana ta cikin wani babban tabarau akan mercury.
Wannan masanin bai fahimci jarin sa ba a kimiyar duniya kuma yayi imani cewa bai gano wani sabon abu mai sauki ba, sai dai kawai wani sashi na iska, wanda yayi alfahari da shi - iska mai lalata.
Wani fitaccen masanin kimiyyar Faransanci, Carl Lavoisier, ya kawo ƙarshen gano iskar oxygen, yana ɗaukar abubuwan da Priestley ya kammala a matsayin tushe: ya gudanar da jerin gwaje-gwaje kuma ya tabbatar da cewa oxygen wani abu ne daban. Don haka, gano wannan gas ɗin mallakin masana kimiyya ne guda ɗaya - Priestley da Lavoisier.
Oxygen a matsayin kashi
Oxygen (oxygenium) - an fassara daga ma’anar Hellenanci - “haifar da acid”. A cikin tsohuwar Girka, ana kiran duk oxides acid. Wannan gas din na musamman shine mafi yawan buƙata a cikin yanayi kuma yana da kashi 47% na dukkanin ɓawon ɓoyayyen ƙasa, ana adana shi a cikin cikin ƙasa da kuma cikin yanayin sararin samaniya, tekuna, tekuna, kuma an haɗa shi azaman ɓangare a cikin mahaɗar sama da dubu ɗaya da rabi na cikin ƙasa.
Oxygen musayar
Tsarin ozone shine haɓakar haɓakar kemikal mai haɓaka abubuwa na ɗabi'a, naturean adam masu rai, da mahimmin matsayinsu a cikin wannan aikin. Tsarin biochemical tsari ne na sikelin duniya, yana haɗa abubuwa na yanayi tare da yanayin duniya kuma ana aiwatar dashi kamar haka:
- fitowar 'ozone' kyauta daga flora yayin hotynthesis, ana haifuwa ne cikin shuke-shuke kore;
- yin amfani da iskar oxygen da aka kafa, wanda manufar sa shine kiyaye aikin numfashi na dukkan kwayoyin halittar numfashi, da kuma hada abu da iskar shaka a cikin kwayoyin halitta da na kayan abinci;
- sauran abubuwa da aka canza sunadarai, wadanda suka haifar da samuwar irin wadannan abubuwa masu sanya abubuwa masu narkewa kamar ruwa da organogen dioxide, da kuma jan hankalin abubuwa masu maimaitaccen tsari zuwa madauki mai daukar hoto na gaba.
Baya ga sake zagayowar da ke faruwa sakamakon photosynthesis, ana fitar da lemar ozone daga ruwa: daga yanayin yawan ruwa, tekuna, koguna da tekuna, ruwan sama da sauran ruwan sama. Oxygen a cikin ruwa yana ƙafewa, yana tarawa kuma ana sake shi. Hakanan ana yin oxygen din ta yanayin yanayin duwatsu kamar su farar ƙasa.
Photosynthesis azaman ra'ayi
Photosynthesis yawanci ana kiranta azaman sakin ozone a yayin sakin mahaɗan mahaɗan daga ruwa da carbon dioxide. Don aiwatar da aikin hotuna a jiki, ana buƙatar abubuwan da ke biyowa: ruwa, haske, zafi, carbon dioxide da chloroplasts - plastids na shuke-shuke da ke ɗauke da chlorophyll.
Ta hanyar daukar hoto, iskar oxygen din da ake samarwa tana tashi zuwa cikin kwallayen da ke sararin samaniya kuma ta samar da lemar ozone. Godiya ga lemar ozone, wanda ke kare saman duniya daga fitowar ultraviolet, an haife rayuwa akan kasa: mazaunan teku sun sami damar zuwa kasa kuma su zauna a doron kasa. Idan ba oxygen, rayuwa a duniyarmu za ta gushe.
Gaskiya game da oxygen
- Ana amfani da Oxygen a cikin tsire-tsire na karafa, a yankan lantarki da walda, in ba shi ba aikin samun ingantaccen karfe ba zai gudana ba.
- Oxygen mai da hankali a cikin silinda yana baka damar gano zurfin teku da sararin samaniya.
- Itace babba guda ɗaya tak ke iya bayar da oxygen ga mutane uku har tsawon shekara guda.
- Saboda cigaban masana'antu da masana'antar kera motoci, abun cikin wannan iskar gas a sararin samaniya ya ragu da rabi.
- A cikin damuwa, mutane suna cin iskar oxygen sau da yawa fiye da cikin kwanciyar hankali, kwanciyar hankali na lafiyar.
- Mafi girman yanayin duniya sama da matakin teku, yana rage iskar oxygen da abubuwan da ke ciki a sararin samaniya, saboda wannan yana da wahala numfashi a cikin tsaunuka, daga al'ada, mutum na iya fuskantar iskar oxygen, yunwa da ma mutuwa.
- Dinosaur din ya iya rayuwa saboda gaskiyar cewa matakin ozone a zamanin da ya wuce sau uku a yanzu, yanzu jininsu ba zai cika da isashshen oxygen ba.
