Praxis II Citizenship

Answer: A -Sinkholes are not a direct result of activity along tectonic plate boundaries. Sinkholes are a direct result of karst terrain, which develops when acid rain or increased groundwater erodes carbonate stone, like limestone. The precise locations of tectonic plate boundaries are known and regularly studied (which enables scientists to prepare for or predict seismic activity). In contrast, it is virtually impossible to detect where a sinkhole actually might occur even though karst terrains have been mapped.