Which formations are features of karst topography? check all that apply.

caves
sinkholes
stalagmites
oxbow lakes
underground lakes

caves, sinkholes, and underground lakes

Explanation:

Karst, terrain usually characterized by barren, rocky ground, caves, sinkholes, underground rivers or lakes, and the absence of surface streams and lakes.

good luck

explanation:

i still can't find this

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs