- leaves behind karst topography - sinkholes - solution valleys & underground streams - disappearing streams - usually in areas where limestone is present cuz air reacts with groundwater to form carbonic acid (H2CO3), and this acid easily dissolves limestone.
(limestone; is; present; L:areas) (air reacts with groundwater; to form; carbonic acid) (this acid; easily dissolves; limestone)
limestone air reacts with groundwater this acid
is to form easily dissolves
present L:areas
carbonic acid
limestone