Groundwater
Practice Test
1.
Groundwater is __________ percent of the world's water supply.
a.
0.31
b.
2.15
c.
0.009
d.
31
2.
What is the largest water supply in the world?
a.
ice caps and glaciers
b.
groundwater
c.
rivers and lakes
d.
the ocean
3.
What is the largest freshwater supply in the world?
a.
groundwater
b.
rivers and lakes
c.
the ocean
d.
ice caps and glaciers
4.
Water can move through soil because of the soil's __________.
a.
well-sorted material
b.
impermeable layer
c.
permeability
d.
porosity
5.
What type of rock has the lowest permeability?
a.
shale
b.
sandstone
c.
highly fractured rock
d.
limestone
6.
When does water deposit calcium carbonate?
a.
when it is supersaturated with travertine
b.
when it is in the zone of saturation
c.
when it loses carbon dioxide or evaporates
d.
when water mixes with carbon dioxide
7.
How are caves formed?
a.
porosity of sandstone and limestone
b.
permeability of water through fine-grained materials
c.
uplift of limestone rocks
d.
dissolution and precipitation of limestone
8.
What is water called when it has a high concentration of iron, magnesium, or calcium?
a.
a lake
b.
hard
c.
soft
d.
groundwater
9.
What is a characteristic of karst topography?
a.
sinkholes
b.
all of the above
c.
caves
d.
sinking streams
10.
How is the water of a hot spring heated?
a.
It is heated from the body heat of humans.
b.
It flows in an open area that is heated by solar activity.
c.
It is heated for no natural reason.
d.
It flows close to an area of recent igneous activity.
11.
According to the figure, where might pollution come from to contaminate Well 1?
a.
your sewage
b.
industrial waste
c.
factory
d.
a neighbor's sewage
12.
Artesian aquifers __________.
a.
often are contaminated with salt water
b.
have hard water
c.
contain water under pressure
d.
have problems with subsidence
13.
The process of water being added to the water table from precipitation is called __________.
a.
condensation
b.
creating a cone of depression
c.
recharge
d.
drawdown
14.
Which well shown in the figure would provide the healthiest water?
a.
Well 4
b.
Well 2
c.
Well 1
d.
Well 3
