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Water Quality Review
Test Description: Water Quality Review
Instructions: Answer all questions to get your test result.
1) Which best determines the health of a lake used as a source of freshwater?
A
depth and width
B
temperature and depth
C
location and depth
D
temperature and pH
2) If a body of water has high turbidity levels, what can most likely be concluded?
A
It has a low pH.
B
It is too hot to drink.
C
It is unsafe to drink.
D
It contains a lot of chemicals.
3) Drinkable water is called ______________.
A
stored water
B
freshwater
C
Safe water
D
potable water
4) Which factors can have the greatest effect on the health of a river system?
A
nitrate levels and turbidity
B
human consumption and pH
C
type of soil and salinity
D
natural disasters and tidal changes
5) In the United States, which is responsible for ensuring the safety of the country’s drinking water?
A
Environmental Protection Agency (EPA)
B
Center for Disease Control (CDC)
C
National Oceanic and Atmospheric Administration (NOAA)
D
Food and Drug Administration (FDA)
6) Why is water from an aquifer more likely to be cleaner than water from other sources?
A
because pollutants are filtered by rock and soil deep within Earth
B
because it receives water directly from precipitation
C
because it forms where fresh and salt water meet
D
because it rises to the surface near the ocean
7) Warm water ____________________________________.
A
Supports more fish in a river.
B
Dissolves less solid substances.
C
does not determine what organisms live there.
D
Dissolves less gas (like oxygen and carbon dioxide).
8) Dissolved oxygen _____________________________.
A
is not used by aquatic organisms
B
makes potable water taste bad.
C
is released from photosynthesis by aquatic plants.
D
is breathed out by aquatic organisms.
9) Pure what has a pH of _____.
A
0
B
12
C
7
D
4.5
10) Nitrates are a chemical derived from ____________.
A
mercury
B
phosphorus
C
carbon
D
nitrogen
11) Which of the following is a measure of how clear water is?
A
temperature
B
turbidity
C
nitrates and phosphates
D
pH
12) Macroinvertebrate means:
A
an organism large enough to see without a backbone
B
an organism you need a microscope to see with a backbone
C
an organism large enough to see with a backbone
D
an organism you need a microscope to see without a backbone
13) Macroinvertebrates are also known as ________________.
A
fish
B
water testers
C
aquatic pH gauges
D
bioindicators
14) Macroinvertebrates that identify a body of water as healthy are considered
A
intolerant
B
polluted
C
tolerant
D
moderately tolerant
*select an answer for all questions
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