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WorksheetsWater Quality Indicators study quiz
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Nitrates are found in what?
a)
fertilizers
b)
water
c)
sewage/septic systems
d)
all of the above
2.
What positive effect do nitrates have on water plants?
a)
Algae and other plants use nitrates as a source of food
b)
Large amounts of algae can cause extreme fluctuations in dissolved oxygen
c)
If you drink water that is high in nitrates, it can interfere with the ability of your red blood cells to transport oxygen
d)
Babies who drink water with high nitrate levels may turn "bluish" or have trouble breathing
3.
What pH level is the best for animals, plants, and the environment?
a)
9
b)
3
c)
5
d)
7
4.
What is the best dissolved oxygen level (mg/L) for water?
a)
0-2
b)
7-11
c)
2-4
d)
4-7
5.
What is NOT true about phosphates
a)
found in fertilizers
b)
found in wastes
c)
They are naturally found in water
d)
They are naturally found in soil
6.
An oil test was done in a river. If tested positive, it means the water is good quality and safe for plants and animals.
a)
True
b)
False
7.
Which water is in the best state?
a)
250
b)
100
c)
50
d)
10
8.
What is the natural level for NO3?
a)
10 mg/L
b)
up to 1 mg/L
c)
0.06 mg/L
d)
11 mg/L or higher
9.
define: any single identifiable source of pollution from which pollutants are discharged
a)
point-source pollution
b)
non-point source pollution
c)
nitrate
d)
bioindicator
10.
define: bioindicator
a)
a measure of acidity and alkalinity of a solution that is a number on a scale
b)
not clear or transparent because of stirred-up sediment
c)
a fertilizing material containing compounds of phosphorus.
d)
a biological indicator of the well-being or abundance of an organism, which is then used to describe the quality of the ecosystem;
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