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Water Quality
Test Description: This is a review for Water quality measurements and what effects them.
Instructions: Answer all questions to get your test result.
1) As the the temperature of water rises the dissolved oxygen
A
does not change
B
goes down
C
goes up
2) As the temperature of water goes down the dissolved oxygen
A
goes down
B
goes up
C
stays the same
3) Which of the following makes water temperature increase?
A
runoff from hot pavement
B
shallow water
C
high air temperature
D
all of these
4) Which of the following makes water temperature decrease?
A
shade
B
deep water
C
lower air temperature
D
all of these
5) There is more diversity of life at:
A
a. higher temperatures
B
b. lower temperatures
6) If there is more photosynthesis going on there will be _______ DO.
A
no change
B
less
C
more
7) If there is more respiration going on there will be ________ DO.
A
more
B
less
C
no change
8) If there is more decomposition going on there will be _______ DO.
A
more
B
less
C
no change
9) If there are a healthy number of plants and algae the DO level will go:
A
down
B
no change
C
up
10) If there are more bacteria and animals the DO level will go:
A
down
B
up
C
no change
11) There is more diversity of life when the DO levels are:
A
higher
B
DO does not affect biodiversity
C
lower
12) After an algae bloom (at the very end) the DO levels are:
A
in the middle range
B
very high
C
very low
13) If there is more photosynthesis going on there will be _______ pH.
A
lower
B
higher
C
neutral
14) If there is more respiration going on there will be ________ pH.
A
higher
B
neutral
C
lower
15) If there is more decomposition going on there will be _______ pH.
A
lower
B
higher
C
neutral
16) If there are a healthy number of plants and algae the pH level will go:
A
down
B
up
C
stay neutral
17) If there are more bacteria and animals the pH level will go:
A
stay neutral
B
up
C
down
18) When there is more dissolved CO2 the pH is:
A
higher
B
neutral
C
lower
19) When there is more DO the pH is:
A
lower
B
neutral
C
higher
20) Pure water has a pH of:
A
0
B
4
C
7
D
10
*select an answer for all questions
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