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Water Quality
Test Description: Water quality
Instructions: Answer all questions to get your test result.
1) How does water with high turbidity impact fish
A
it makes them change colors
B
it doesn't
C
it makes them swim better
D
the sediments in the water clog their gills
2) As temperature increases, dissolved oxygen
A
remains the same
B
I don't know
C
decreases
D
increase
3) living organisms that are used to assess the health of a body of water: they are sensitive to pollution.
A
bio-indicators
B
algal blooms
C
phoshates
D
nitrates
4) What is the max temperature water can be for it to be healthy?
A
40 degrees celsius
B
38 degrees celsius
C
25 degrees Celsius
D
35 degrees celsius
5) What do too much or excess nitrates and phosphates cause to happen in a body of water?
A
makes it clearer
B
no algae
C
makes it healthier
D
algal blooms
6) How do nitrates and phosphates enter into a body of water?
A
rain
B
animals
C
people swimming
D
run off containing fertilizers
7) What happens to the temperature of water with high turbidity
A
it remains the same
B
it increases because heat is reflected
C
in increases because it absorbs heat
D
it decreases
8) A measure of how acidic or basic water is
A
temperature
B
bio-indicators
C
turbidity
D
pH
9) If the pH is 7 it is considered to be
A
neutral
B
acidic
C
basic
D
.
10) If water has an acidic pH that means it is probably
A
it means nothing
B
IDK
C
healthy
D
polluted
11) This is not a way of getting nitrates in surface water
A
septic tank sewage
B
runoff contaminated with fertilizers
C
animals swimming in it
12) Which factors can have the greatest effect on the health of a river system?
A
nitrate levels and turbidity
B
type of soil and salinity
C
human consumption and pH
D
natural disasters and tidal changes
13) How might fertilizer runoff from a soybean field affect the quality of water in the farm pond?
A
It promotes algae growth, which lowers the oxygen level in the pond.
B
It increases the pH level.
C
It decreases the overall water temperature.
D
It decreases the turbidity, which lowers the amount of particles in the pond.
14) What most directly affects the amount of dissolved oxygen in a body of water?
A
pH
B
temperature
C
turbidity
D
salinity
*select an answer for all questions
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