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Water Quality
Test Description: 6.9
Instructions: Answer all questions to get your test result.
1) What causes sediment from construction sites to get in rivers and streams?
A
high ph
B
nitrates
C
weathering and erosion
D
eutrophiciation
2) Sewage from our homes goes to
A
storm drain
B
the ocean
C
water treatment plant
D
a reservoir
3) Which instrument is used to measure water clarity?
A
secchi disk
B
pH strip
C
hydrometer
D
thermometer
4) Amount of dissolved salt in water is called
A
salinity
B
algae
C
turbidity
D
pesticides
5) The health of an ecosystem is directly related to
A
sludge
B
water quality
C
plants
D
animals
6) Which is NOT a way to test water quality?
A
humidity
B
pH
C
dissolved oxygen
D
salinity
7) Excessive nutrients cause
A
high temperatures
B
lower temperatures
C
high dissolved oxygen
D
low dissolved oxygen
8) What is a safe pH for aquatic life?
A
6-9
B
1-3
C
10-14
D
4-5
9) Oxygen in the water comes from the atmosphere and
A
teenage mutant ninja turtles
B
fish breathing
C
animals
D
plants
10) In an excellent stream there would be a high number of
A
dissolved oxygen
B
salinity
C
macroinvertebrates
D
turbidity
*select an answer for all questions
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