How do groundwater erosion and deposition produce a limestone cave?

The world wars of the twentieth century immediately led to a. the establishment of a communist bloc in eastern europe b. the urbanization of europe’s societies c. an emphasis on humanism d. an emphasis on ties to greek and roman societies select the best answer from the choices provided. a b c d

Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer

Cardueline finches can be found in what areas of the world?