Txawm hais tias qhov kev teeb tsa ntawm lub tshuab nqus plua plav tuaj yeem tiv thaiv plua plav tawg, ua ntej nkag siab tias vim li cas cov plua plav tawg tshwm sim. Lub hauv paus ntsiab lus ntawm cov hmoov av tawg yog yooj yim heev, zoo ib yam li cov pa tawg, tab sis tom qab tag nrho, ib qho yog cov roj sib xyaw ua ke tawg thiab lwm qhov yog cov pa ntshiab tawg, yog li yuav tsum muaj qhov sib txawv ntawm qhov xwm txheej.
Lub zog ntawm plua plav tawg yog qee zaum ntau dua li ntawm cov pa tawg, thiab qhov laj thawj yog qhov yooj yim. Piv txwv li, thee hmoov yuav hnov mob nrog oxygen thiab tsim cov pa roj carbon dioxide, uas tseem tuaj yeem suav tau los ntawm kev tsim txiaj ntawm kev paub txog chemistry hauv tsev kawm theem siab. Cov txheej txheem no yuav tso tawm ntau cov pa roj thiab cua sov. Hauv cov txheej txheem los ntawm cov khoom siv rau cov roj, qhov nthuav dav ntawm qhov ntim feem ntau loj dua li ntawm cov pa mus rau cov pa roj, yog li lub zog feem ntau muaj zog dua li ntawm cov pa tawg.
Feem ntau, muaj peb qhov laj thawj tseem ceeb rau kev tawg.
1. Cov hluav taws xob zoo li qub, tshwj xeeb tshaj yog thaum qee cov plua plav thauj mus rau hauv cov kav dej, kev sib txhuam nrog cov kav xa dej kuj tseem yuav tsim hluav taws xob zoo li qub, txawm tias cov pa taws.
2. Rau tib neeg vim li cas, xws li kev haus luam yeeb hauv cov chaw muaj plua plav, tsis tso cov teeb hluav taws xob tawg rau hauv cov chaw plua plav raws li kev tswj hwm, tsis saib xyuas cov plua plav kom ncav cuag qhov tawg, lossis tsis tuaj yeem nruab cov khoom siv tshem tawm plua plav raws li kev cai.
3. Lub siab nyem. Thaum muaj plua plav tawg, yog tias tib neeg raug cov plua plav, nws yuav ua rau raug mob. Qhov ntsuas tsuas yog xa lawv mus rau tsev kho mob kom cawm. Txawm li cas los xij, yog tias lub raj xa dej thauj cov plua plav tawg, cov chaw nres nkoj siab tuaj yeem teeb tsa rau ntawm qhov chaw ntawm cov kav dej kom tsis txhob muaj cov tshuaj tiv thaiv kab mob. Nyob rau hauv cov ntaub ntawv ntawm tawg, tso lub zog los ntawm lub siab nyem qhov chaw nres nkoj kom txo tau poob.
Qhov tseeb, tom qab kev teeb tsa lub tshuab nqus plua plav, nws yuav muaj lub tswb nrov. Ntev npaum li cov plua plav concentration tshaj qhov ceeb toom tus nqi, nws yuav muab lub tswb. Qhov peb tuaj yeem ua tau yog kom khiav tawm thiab ua pa rau tib neeg.