About this Study Set
This study set covers Environmental Science through
18 practice questions.
A challenging assessment of environmental pollution mechanisms, sources, and chemical interactions. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Pollution Science Mastery study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which process describes the accumulation of toxins in higher trophic levels of a food web?
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A
Eutrophication
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B
Bioaccumulation
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C
Biomagnification
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D
Biodegradation
2
What is the primary chemical compound responsible for the depletion of the stratospheric ozone layer?
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A
Chlorofluorocarbons (CFCs)
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B
Carbon Dioxide
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C
Methane
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D
Sulfur Dioxide
3
In aquatic ecosystems, what is the direct result of excessive nitrogen and phosphorus runoff?
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A
Thermal pollution
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B
Ocean acidification
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C
Eutrophication
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D
Salinization
4
Which type of radiation is primarily trapped by greenhouse gases in the Earth's atmosphere?
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A
Ultraviolet
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B
Gamma
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C
Infrared
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D
X-ray
5
What is the chemical formula for the acid primarily responsible for acid rain when sulfur dioxide reacts with water?
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A
H2CO3
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B
H2SO4
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C
HCl
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D
HNO3
6
Which heavy metal, historically used in paints and pipes, is known to cause severe neurotoxic effects in children?
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A
Mercury
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B
Cadmium
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C
Lead
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D
Arsenic
7
What measurement is commonly used to quantify the amount of oxygen required by aerobic microorganisms to decompose organic matter?
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A
Biochemical Oxygen Demand (BOD)
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B
Dissolved Oxygen Content (DOC)
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C
Total Suspended Solids (TSS)
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D
pH level
8
Which greenhouse gas is produced by the anaerobic decomposition of waste in landfills?
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A
Nitrous oxide
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B
Methane
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C
Sulfur hexafluoride
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D
CFC-12
9
What is the primary source of anthropogenic mercury pollution in the global environment?
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A
Automobile exhaust
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B
Coal-fired power plants
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C
Plastic manufacturing
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D
Agricultural fertilizers
10
Which particulate matter classification refers to particles with a diameter of 2.5 micrometers or smaller?
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A
PM10
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B
PM2.5
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C
PM0.1
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D
PM5
11
What causes the phenomenon known as 'coral bleaching' in marine environments?
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A
Increased salinity
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B
Higher water temperatures
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C
Oil spills
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D
Overfishing
12
Which gas, produced by the incomplete combustion of fossil fuels, binds to hemoglobin and prevents oxygen transport in the blood?
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A
Carbon dioxide
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B
Nitrogen dioxide
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C
Carbon monoxide
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D
Sulfur dioxide
13
What is the term for the movement of pollutants through soil and into groundwater?
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A
Leaching
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B
Transpiration
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C
Erosion
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D
Sedimentation
14
Which sector is the largest global emitter of methane?
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A
Transportation
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B
Agriculture
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C
Manufacturing
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D
Construction
15
In the context of soil pollution, what does 'persistence' refer to?
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A
The rate of evaporation
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B
The chemical's resistance to degradation
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C
The ability to bind to plants
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D
The toxicity to microorganisms
16
What byproduct of plastic degradation in the ocean acts as a sponge for hydrophobic pollutants?
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A
Microplastics
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B
Methane
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C
Biomass
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D
Calcium carbonate
17
Which element is the primary component of most commercial fertilizers that contributes to water pollution?
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A
Potassium
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B
Nitrogen
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C
Magnesium
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D
Calcium
18
What is the primary reason that deep-ocean water is highly susceptible to long-term pollution?
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A
Low temperatures and slow circulation
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B
High salinity
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C
Extreme pressure
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D
Absence of light
