Ngokuqhelekileyo ithoyilethi yomngxuma iba neenxalenye ezintathu ezibalulekileyo: umngxuma osemhlabeni, islebhu okanye umgangatho onomngxuma omncinci, kunye nekhusi. Lo mngxuma udla ngokuba ziimitha eziyi-3 ubuncinane (10 iinyawo) ubunzulu kunye ne-1 m (3.2 iinyawo) ububanzi. IWorld Health Organization incomela ukuba zakhiwe kumgama ofanelekileyo ukusuka endlini kulungelelaniswa umba wokufikeleleka lula kunye nomba wevumba. Umgama ukusuka kumanzi angaphantsi komhlaba namanzi angaphezu komhlaba ufanele ube mkhulu kangangoko kunokwenzeka ukunciphisa ingozi yokhukuliseko. Umngxuma okwislebhu awufanele ube mkhulu kuneesentimitha eziyi-25 (9.8 intshi) ukuthintela ukuwela kwabantwana kuwo. Ukukhanya kumele kuthintelwe kungangeni kulo mngxuma ukuze kungangeni zimpukane. Oku kunokufuna ukuba kusetyenziswe isiciko ukuze kugqunywe umngxuma xa ungasetyenziswa. Xa umngxuma uzala ufikelela kwiimitha eziyi-0.5 (1.6 iinyawo) ukuya phezulu, ufanele uphungulwe okanye kwakhiwe umngxuma omtsha kuze kuthuthelwe ikhusi kwindawo entsha okanye liphinde lakhiwe. Ukulawulwa kwelindle elikhutshwa emngxumeni kunzima. kukho iingozi kokusingqongileyo nakwimpilo.

Ukufunda esikolweni kuthatha iminyaka eli-13 - okanye amabanga - nangona unyaka wokuqala wemfundo, iBanga R okanye ""lolwamkelo esikolweni"", neminyaka emithathu yokugqibela, iBhanga 10, 11 nele-12 okanye ""iMetriki"" akanyanzelekanga. Iziklo zamabanga asezantsi ezininzi ziyabonelela ngeBanga R, nangona lisenokwenziwa epriskuli.

Njengomntu owayesele engene ngokupheleleyo kwinkolo yamaKristu, ekhulele kuyo eseyinkwenkwe, uTiyo wathi akufika eScotland wabhabhatizwa ngo1948.

I-Oxygen ikwayiyo eyenza okokuba ukuvutha oku kwenzeke. Oku ke kuthiwa kukuvutha. Xa into ethile isitsha okanye ivutha, i-oxygen idibana nenye into ize ivelise ubushushu nokukhanya. Umzekelo, xa utshisa ukhuni, i-oxygen esemoyeni idibana nokhuni kutsho kwenzeke umlilo. Obu buchule be-oxygen bunemisebenzi emininzi. Kodwa, ikwenza okokuba i-oxygen ecocekileyo ibeyingozi. Ukuba i-oxygen ecocekileyo ikhe yachukumisa idangatye okanye yaqhwitha, isenokuvutha ize ke ngoko yenze umonakalo omkhulu. Ukuvutha kungasetyenziswa ngeendlela ezininzi. umzekelo, xa i-oxygen ithe yaxutywa ne-acetylene, ingadala ilangatye elitshisa kakhulu. Ilangatye elitshisayo lisetyenziswa xa ukutshiswa kwentsimbi Ilangatye elitshisayo lisetyenziswa ukutshiswa kwentsimbi, apho intsimbi ithi itshiswe iphinde inyibilikiswe. Kananjalo, i-oxygen isetyenziswa ukwenza ii-fuels ezinamandla, ezinokusetyenziswa kwii-rockets nakwii-jets.

Ukujikeleza, kuhlala kubizwa ngokuba kukwenza isajinge, kudlala indima enkulu kwiinkqubo zemidlalo ezininzi. I-Topspin kunye ne-backspin kwintenetya. IsiNgesi, silandela size senze i-draw kwi-billiards ne-pool. Iibhola ze-Curve kwi-baseball nakwi-spin bowling ye-cricket. Iipaddles ze-Table tennis azibaluleke ngokuthi zivumele abadlali ukuba bajikelezise ibhola ngeli lixa beyibetha.

Kukho iilwimi ezingamawaka amabini anekhulu ukuya kumawaka amathathu ezithethwayo zemveli eAfrika kwiilwimi ezininzi eziphambili zeentsapho: