Kev nce hauv tib neeg cov pej xeem tsis yog txheej txheem tsis kawg. Qhov tseem ceeb tshaj plaws tiv thaiv qhov no yog qhov txwv tsis pub muaj peev txheej ntuj thiab kev txo qis ntawm qhov tseem ceeb tshaj plaws ntawm lawv. Natural Resources yog txhua yam uas ib tug neeg siv nyob rau hauv nws lub neej