The presence of which one of the following would indicate that the land had been uplifted or that sea level had fallen?
a. an esturary
b. a tombolo
c. a sea stack
d. a sea arch
e. a wave cut platform

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

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity

Which soil layers comprise the topsoil? o horizon a horizon b horizon c horizon