I-oxygen ecocekileyo ingaveliswa ngeendlela ngeendlela. ngokwendalo, izityalo zisebenzisa ukukhanya kwelanga xa zivelisa i-oxygen, i-carbon dioxide (enye i-gas) kunye namanzi. Le nkqubo ibizwa ngokuba yi-photosynthesis. Uninzi lwe-oxygen esemoyeni yenziwe nge-photosynthesis. I-Oxygen isenokwenziwa ngabantu, besebenzisa inkqubo ekuthiwa yi-electrolysis. Kule nkqubo, umbane ihamba ngamanzi. Zitsho iimolecules zamanzi ziqhekeke zikhuphe i-oxygen kunye ne-gesi i-hydrogen.

Ezinye ii-elements, ingakumbi ii-elements ze-metal ziyadibana zizodwa nangayiphi na i-proportion ukuze zenze izi-structures esintsha. Ezo structures ezintsha azizo compounds. zibizwa ngokuba yimixube.

Iindaba zenzeka xa abantu bethetha ngeziganeko ezisematheni (izinto ezenzeka ngoku sithethayo). Iindaba zisenokuza ngamaphepha-ndaba, ngoomabonakude, ngeemagazini, okanye ngoonomathotholo. Iliqela imizila yeendaba k-ubuxhaka-xhaka beengcingo zoomabonakude abasoloko bephokoza iindaba imini yonke, iindaba ezifana ne-Fox News kunye ne-CNN. ziliqela iindaba zemagazini ezifana ne- Time, i-The Economist, kunye ne-Newsweek. Unondaba ngumntu onceda abaphulaphuli ngeendaba. Umzekelo, uBrian Gotter ngunondaba.

Ukuba baphinda-phinda inani eli-negative ngeli-positive, okanye baphinda-phinde inani eli-positive ngeli-negative. Bayakufumana iziphumo ezi-negative umzekelo, u-5 xa ephindwa-phindwa ngo- −3 kuphuma u- −15.

Utata u Nelson Rolihlahla Mandela wazelalwa kwenye yeelali zasemtata ebizwa ngokuba yiQunu waze wakhulela khona. Mthatha yenye yeelali enembali kakhulu kweli lomzantsi Afrika njengoko ezinye inkokheli zalapha eMzantsi Afrika ziphuma khona.

IPitoli liziko lemveliso elubaluleke kakhulu. Inemizi yemveliso emininzi kakhulu singabalula eyentsimbi and intsimbi ebunkcenkce kunye nenqwelo ezitshintshayo, indlela kaloliwe kunye neematshini nemizi-mveliso.

Nangona igazi lingamanzi, ngezinye iindlela likwaluhlobo lokunxulumanisa amalungu angaphakathi omzimba. Imbewu yegazi isuka kumongo wethambonakwi''spleen'', kwaye egazini kukwakho nemicu yeenwebu ebalulekileyo eluhlobo lwefibrinogen. Zonke ezi zisebenza xa kusenzeka ihlwili legazi.

Nangona kunjalo, Asinakuqiniseka ngokupheleleyo, okokuba akukho nto iyenye mhlawumbi enokuba ngunobangela woku. Umzekelo wesizathu esifuhlakeleyo isenokuba iswekile inyibilika msinya qho xa iswekile eninzi inyibilikele kwindawo enye. Kusenokunabiyo nyaniso oku, kodwa ukubangaba bekunjalo ngenene, iziphumo beziyakufana nqwa: amalinge amathathu awenziweyo, kunye neli lokugqibela kulapho iswekile ibiyakunyibilika ngokukhawuleza nangaphezulu. Ngoko ke, asinaso isizathu ngokuphelelyo esinokwenza sigqibe sithi oku kuyinyaniso okwangoku, singasuka nje sisise iso esi siphumo njengempendulo efanelekileyo okwangoku.