A: 1. Kev xa khoom sai feem ntau yog txoj kev ceev tshaj plaws tab sis kuj yog txoj kev kim tshaj plaws. Peb muaj ntau txoj kev xa khoom sai sib txawv los xaiv, thiab peb tuaj yeem muab cov kev daws teeb meem xa khoom sai raws li cov neeg siv khoom xav tau. 2. Kev thauj khoom los ntawm huab cua sai dua tab sis pheej yig dua li kev xa khoom sai. Cov neeg siv khoom yuav tsum mus rau tshav dav hlau kom tuaj tos cov khoom. Nws haum rau cov xwm txheej uas muaj ntau yam khoom tab sis lub sijhawm xa khoom ntawm cov neeg siv khoom sai dua.
3. Kev thauj khoom hauv dej hiav txwv, rau feem ntau lub tebchaws peb muab kev pabcuam thauj khoom hauv dej hiav txwv, rau 0.5-20 cubic meters ntawm cov khoom, yog li cov neeg siv khoom tuaj yeem tau txais cov khoom yooj yim dua thiab yooj yim, tsis muaj kev ua haujlwm ntawm kev tshaj tawm ntshuam thiab them se.
Rau cov khoom loj, kev thauj khoom hauv dej hiav txwv yog qhov kev daws teeb meem zoo tshaj plaws. Yog tias peb paub cov ntaub ntawv ntxaws txog qhov ntau, qhov hnyav thiab txoj kev thauj mus los, peb tuaj yeem muab tus nqi thauj khoom tseeb rau koj. Ua sai sai thiab paub meej tus nqi thauj khoom tiag tiag nrog peb lub chaw muag khoom.