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WorksheetsWater Quality
Total questions: 14
Worksheet time: 11mins
Name
Class
Date
1.
Describes the chemical, physical and biological attributes of water as it is fit for drinking, fishing, swimming, farming, etc
a)
Water Quality
b)
Water Sheds
c)
Dissolved oxygen
d)
nitrates
2.
The amount of oxygen in the water, measured in parts per million (ppm)
a)
pH
b)
Dissolved Oxygen
c)
nitrates
d)
eutrophication
3.
We used bioindicators to measure the quality of water. What is a bioindicator?
a)
any living creature
b)
eutrophication
c)
An organism sensitive to its environment
d)
a turbidity tube
4.
The specific bioindicator we used were macroinvertebrates. What is a macroinvertebrate?
a)
large enough to be seen without a microscope with no backbone (bugs)
b)
any bioindicator
c)
nitrates
d)
pH
5.
What is the healthiest combination listed?
a)
low pH, high nitrates, neutral temperature
b)
low temperature, neutral pH and low nitrates
c)
as many nitrates as possible, low temp and low pH
d)
high temp, high nitrates and high pH
6.
High turbidity means.....
a)
very clear water
b)
neutral pH
c)
very murky or cloudy water
d)
high nitrates
7.
what is the biggest impact of run-off in urban areas on stream health?
a)
incised, steep banks and a narrow stream channel due to erosion
b)
high turbidity
c)
high nitrates due to fertilizer
d)
sewage leaks
8.
how does increasing nitrates impact stream health
a)
excess algae
b)
increased oxygen
c)
increased water clarity
9.
What is the end result of eutrophication?
a)
More algae
b)
decreased oxygen and fish kills
c)
less turbidity
d)
a new pond
10.
If water temperature goes UP, what happens to the level of Dissolved oxygen?
a)
It goes up
b)
It goes down
11.
What piece of equipment do we use to measure turbidity?
a)
a chemical test
b)
bioidicators
c)
a secchi disk
d)
incision ration
12.
Which water quality indicator will be most impacted by burning fossil fuels and air pollution?
a)
nitrates
b)
pH (water will be more acidic)
c)
Dissolved oxygen
d)
turbidity
13.
What type of relationship does dissolved oxygen and temperature have?
a)
A positive correlation
b)
an exponential correlation
c)
a negative correlation
d)
No relationship
14.
A post development (urbanized) stream will most likely have which combination of physical characteristics?
a)
sloping banks, many habitat transitions, varied substrate sizes
b)
wide sloping banks with few habitat transitions and little substrate variation
c)
Incised banks, fewer habitat transitions and less variation in substrate size
d)
incised banks, no trees, lots of habitat transitions and a wide variety of substrate sizes
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