Kev Txawj Ntse
Kev koom ua ke cov thev naus laus zis zoo li cov neeg hlau thiab cov cuab yeej ntse rau hauv cov cuab yeej siv phais pov tseg tuaj yeem txhim kho qhov tseeb thiab qhov tshwm sim.
Cov khoom siv biodegradable
Kev siv cov khoom siv biodegradable hauv cov khoom siv phais pov tseg tuaj yeem txo lawv cov kev cuam tshuam ib puag ncig.
Kev nkag mus tau yooj yim dua hauv cov teb chaws tsim kho
Kev siv zog ua kom cov khoom siv phais phais siv tau yooj yim dua hauv cov tebchaws tsim, txhim kho cov qauv kev noj qab haus huv thoob ntiaj teb.