GW/SW/Watershed

What is the source of most surface water and groundwater?

• Snow
• Precipitation
• Run-off
• Wastewater

Surface runoff in a watershed that empties into the Mississippi river has become polluted by sewage and fertilizers.
Which of the following environments might become polluted as a result?
   
I. aquatic environments downstream of the watershed
II. land environments along the banks of the river
III. environments upstream

• II only
• IIII only
• I, II, and III
• I and II only
   

Lucas built a model to show the effect of human population growth on an aquifer that supplies water for a growing city.   He placed a tub under a stream of water until the tub filled and began to overflow. Then he used a water pump to begin removing water from the tub. At first he pumped slowly, and the water still overflowed. Then he pumped harder until, eventually, the water level in the tub began to go down.   What is represented by the tub in this model?

• The containment of the water in an underground area
• The water that enters the aquifer due to precipitation and runoff
• The amount of water that flows out of the aquifer as natural springs
• The amount of water from the aquifer that is used by the city

Water that stands or flows across the Earth’s surface.

• Groundwater

• Surface water

• Runoff

• Divide

Open spaces between soil particles that allow water to pass through

• Aquifer
• Well
• Pores
• Spores

The area that is drained by a river and all the streams that empty into it

• Water table
• Divide
• Watershed
• Delta

The boundary between the zone of aeration and the zone of saturation is called the...

• well
• recharge zone
• the water table
• watershed

Because they have large connected pores, materials such as sand and gravel allow water to pass through.  This is known as 

• Permeable
• Impermeable

An underground layer of rock or sediment that holds water?

• Reservoir
• Aquifer
• Groundwater
• Watershed

What is the water that fills the cracks and spaces in underground soil and rock layers called?

• Groundwater
• Water Table
• Precipitation
• Snow