Groundwater Flow and contaminant transport in aquifers

An aquifer is an underground vaccum space filled with groundwater.

• True

• False

An aquifer is an underground layer of water-bearing permeable rock.

• True

• False

Aquifers are the first source of freshwater everywhere in the world.

• True

• False

Groundwater is more exposed to contamination than surface water.

• True

• False

The most important part of a well that allows for collecting water is:

• The casing

• The screen and the gravel pack

• Clay seal

In this Figure (1) is:

• Borehole

• screen

• gravel pack

In this Figure (2) is:

• Casing

• screen

• gravel pack

In this Figure (4) is:

• Borehole

• screen

• gravel pack

In this Figure (5) is:

• Borehole

• screen

• gravel pack

A pump could be used for getting water out of the well. Do you think that there is a case where water can go up without pump?

• Yes

• No