Human Impact review

Where is the water table located?

• at the top of the saturated zone

• between layers of impermeable rock

• in the unsaturated zone

• below layers of clay

When water cycles back to Earth, some of it is lost as surface runoff. However, a large portion of the water that reaches Earth's surface seeps into the ground. This water underground is called _?_

• surface water

• groundwater

• runoff

• precipitaiton

A(n) ___ is an underground layer of permeable rock that holds water & allows it to flow.

• aquifer

• low-lying

• drainage

• river system

What is a measure of how easily water can flow through an aquifer?

• Porosity

• Permeability

• Recharge

• Discharge

An area of land in which all of the water falling or flowing over it drains to the same location is a/an…

• watershed
• watertable
• river
• aquifer

In the diagram, letter A best represents:

• Runoff

• Watershed

• Water Table

• Confining Layer

Groundwater is found in permeable rock. Permeable means…

• pass through

• nothing can pass through

• caves and caverns

• answer not shown

Which surface would have the most runoff from it after a rainstorm?

• 
• 
• 
• 

How do people extract groundwater?

• groundwater cannot be extracted
• by drilling wells and pumping water out of the ground
• mining water from the Earth
• answer not shown

The area of an aquifer in which rock pores are completely filled with water.

• water table
• watershed
• zone of saturation
• surface water