Definition:

Groundwater is water stored below the surface of the earth, usually occupying small voids ("pores") withing rock and sediments. Karst landscapes have been affected by the dissolution of limestone in acid groundwater, producing features such as caverns, sinkholes, and underground streams.

Options:

Slide Show (slow, big picts)
Browse Slides (fast, small picts)

Supplemental Links:

Quiz Study Guide
Exam 3 Study Guide