Assume that you have decided to drill a water well. List two factors that should be considered prior to drilling.

Match each process of the hydrologic cycle with its definition.

The diagrams show lag time between rainfall and peak flow (flooding) for an urban area and a rural area. Which diagram (A or B) represents a rural area? Explain your choice.  

The fate of the universe that is currently favored is the Big ________.

Galaxies are collections of ________.

Tornadoes most often move towards what direction?

Is this rock igneous, metamorphic, or sedimentary?

Match each metamorphic rock with one possible parent rock. 

List them from lowest to highest in metamorphic grade.

What is the distribution of land and water in the Southern Hemisphere?