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