Surface Water and Ground Water

What could happen to the water table if all the wells start pumping at once?

• the water table may fall
• the water table may rise
• the boat will sink
• the wells will overflow

Porosity is the space between particles of soil.  This is different from permeability which is the ability of water to flow through the soil.  What kind of soil will retain, or hold, water most tightly?

• sandy soils
• clay soils

Permeability is the ability of a liquid to flow through a solid.  It is different than porosity because when pores are isolated they are still not permeable.  The word IMpermeable means NOT permeable.  Which of the three soil samples shown is most impermeable?

• sand
• sandy loam
• clay

The use of pesticides and fertilizers must be carefully monitored 
because of the effect they can have on the environment. 
Which of the following is a possible negative effect of the use 
of these chemicals on the environment?

• Runoff carries these chemicals into lakes and streams.
• Theses chemicals cannot be purchased in large bulk.
• 
  These chemicals are expensive to produce.
  
• Storage space for these chemicals is limited.

Humans affect watersheds and wetlands by :

• polluting
• destroying
• overbuilding
• all of the above

Rapid growth of algae in a pond is a result of what?

• loss of habitat
• flooding
• excess nutrients from fertilizer runoff
• clogged river tributaries

Water from precipitation that flows into a stream, which then flows into a lake, river or ocean is what?

• groundwater
• surface water
• aquifer
• subsidence

An area of land where surface water and groundwater drains into a particular body of water, separated from each other by drainage divides-

• water table
• porosity
• watershed
• aquifer

The top of the saturation zone-

• water table
• permeability
• watershed
• saturation zone

Which is the amount of empty space in a material?

• water table
• permeable rock
• permeability
• porosity