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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
Air pollution
B
Nonpoint
C
Road runoff
D
Point
2) Stormwater is treated before returning to a lake or river.
A
True
B
False
3) The pH of pure water is
A
5
B
14
C
7
D
9
4) Acid rain often originates in which area:
A
agricultural
B
industrial
C
neighborhoods
5) If your wastewater doesn't flow to a sewage treatment plant, then where does it go?
A
river or lake
B
water treatment plant
C
septic tank
D
directly underground
6) Which is not a type of chemical pollution?
A
Petroleum waste
B
Smoke in the air
C
animal waste runoff
D
Factory dumping toxic 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
conserving water in our homes
B
population increase
C
imposing water restrictions in certain areas
9) The area of freshwater underground is called the
A
aquifer
B
septic tank
C
lake
D
freshwater
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
Untreated sewage often ran into freshwater supplies
B
Ocean water made the freshwater salty.
C
factories released too much smoke
12) The pH of water is a measure of...
A
cloudiness
B
acidity
C
cleanliness
D
hardness
13) Communities may get their household/drinking water from all of the following except...
A
aquifer
B
lake
C
ocean
D
river
14) The measure of cloudiness in water is called
A
turbidity
B
hardness
C
cleanliness
D
acidity
15) Chlorine is often added to
A
improve taste of water
B
soften the water
C
kill disease-causing microorganisms
D
prevent turbidity
16) Stormwater is treated; wastewater is not.
A
True
B
False
17) Wastewater is treated before returning to the natural environment.
A
false
B
True
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 reduces odors like chlorine
C
the air dissolves in the water
19) Freshwater means...
A
water that doesn't contain salt
B
water all around us
C
water that is clean
20) Which is not an example of non-point pollution
A
gulf oil spill
B
factory smoke
C
oil spills on the road
D
animal waste runoff
*select an answer for all questions
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