Karst Topography

Which Virginia province has karst topography?

• Coastal Plain

• Piedmont

• Blue Ridge

• Valley abd Ridge

• Appalachian Plateau

Karst topography is an area that has

• lots of mountains

• many lakes

• caves and sinkholes

Caves and sinkholes occur because

• acid rain weathers rock over time

• magma pushes its way through the rock forming holes

• Water wears away the rock forming caves

Rock that is very likely to easily weather is

• igneous - granite

• sedimentary - limestone

• metamorphic - gneiss

Limestone and dolomite are mostly composed of the mineral ________ which is soft and weathers easily.

• quartz

• calcite

• sulfur

One problem karst topography presents to groundwater is that it can easily contaminate well water for thousands of people from spills or leaks in the ground.

• true

• false

Wells are located in the

• zone of aeration

• water table

• zone of saturation

When droughts occur the

• water table lowers and the zone of aeration increases

• the water lowers and the zone of saturation increase

• the water table rises and the zone of saturation rises

• the water table rises and the zone of aeration decreases

The water table is the line between the zone of aeration and the zone of saturation.

• true

• false

Permeability means a rock or soil that

• allows water to seep through it

• does not allow water to seep through it