1-Cov khoom tsim los ntawm peb lub Hoobkas ncaj qha
2-zoo nkauj thiab ruaj khov qauv
3-kev ua tau zoo heev ntawm lub teeb xa tawm thiab tiv thaiv ultraviolet los ntawm kev npog cov khoom siv
4- Yooj yim tsim thiab teeb tsa.
5-Thaum lub sijhawm lav, vim yog siv tsis raug lossis yog vim muaj ib puag ncig ntuj tsim, peb muab cov khoom hloov thiab cov khoom siv, uas muag los ntawm tus nqi raug nqi