Cov pob zeb ua si ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam, ua haujlwm tseem ceeb hauv kev tsim vaj tsev, phab ntsa, thiab pavements. Raws li qhov kev thov rau cov pob zeb ua vaj tse nce, yog li qhov xav tau rau cov tshuab ua haujlwm tau zoo thiab ntau yam. Th