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Water Pollution
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Water pollution that is specific and can be identified
A
Point
B
Road runoff
C
Air pollution
D
Nonpoint
2) Stormwater is treated before returning to a lake or river.
A
False
B
True
3) The pH of pure water is
A
5
B
14
C
9
D
7
4) Acid rain often originates in which area:
A
neighborhoods
B
industrial
C
agricultural
5) If your wastewater doesn't flow to a sewage treatment plant, then where does it go?
A
river or lake
B
directly underground
C
septic tank
D
water treatment plant
6) Which is not a type of chemical pollution?
A
Smoke in the air
B
Factory dumping toxic waste
C
animal waste runoff
D
Petroleum waste
7) Which is not a reasonable way to clean polluted water?
A
use chlorine to treat drinking water
B
use sand/gravel to filter water
C
use runoff water from farms to dilute lakes/rivers
8) How can a water shortage occur?
A
population increase
B
imposing water restrictions in certain areas
C
conserving water in our homes
9) The area of freshwater underground is called the
A
freshwater
B
aquifer
C
lake
D
septic tank
10) Which is not an advantage of using a sprinkler for irrigation?
A
less water is wasted
B
can control the amount of water used
C
water can evaporate easily
11) Why did cities develop wastewater treatment plants in the past century?
A
factories released too much smoke
B
Ocean water made the freshwater salty.
C
Untreated sewage often ran into freshwater supplies
12) The pH of water is a measure of...
A
acidity
B
cleanliness
C
cloudiness
D
hardness
13) Communities may get their household/drinking water from all of the following except...
A
lake
B
river
C
ocean
D
aquifer
14) The measure of cloudiness in water is called
A
turbidity
B
hardness
C
cleanliness
D
acidity
15) Chlorine is often added to
A
kill disease-causing microorganisms
B
soften the water
C
prevent turbidity
D
improve taste of water
16) Stormwater is treated; wastewater is not.
A
False
B
True
17) Wastewater is treated before returning to the natural environment.
A
True
B
false
18) When air is forced through water in the treatment process, this is done because...
A
the help helps sediments settle down.
B
the air dissolves in the water
C
the air reduces odors like chlorine
19) Freshwater means...
A
water that is clean
B
water all around us
C
water that doesn't contain salt
20) Which is not an example of non-point pollution
A
animal waste runoff
B
gulf oil spill
C
factory smoke
D
oil spills on the road
*select an answer for all questions
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