Quiz: Toxins
Due Apr 13 at 11:59pm
Points 30
Questions 30
Time Limit 60 Minutes
Instructions
Attempt History
Attempt Time Score
LATEST
Attempt 1
36 minutes 29 out of 30
Correct answers are hidden.
Score for this quiz: 29 out of 30
Submitted Apr 6 at 9:11pm
This attempt took 36 minutes.
Question 1
1 / 1 pts
brain and/or nervous system disorders
liver damage leading to liver cancer
lung cancer or other respiratory ailments
bone deterioration and kidney malfunction
skin eruptions and emotional disorders
Question 2
1 / 1 pts
The quiz:
Covers the
Learn
material from
Module 4: Week 4
.
Contains
30 multiple-choice
questions.
Is
limited
to
60 minutes
.
Allows 1 attempt
.
Is
worth 30 points
.
Submit this assignment by 11:59 p.m. (ET) on Sunday of Module 4: Week 4.
Human poisonings due to mercury exposure most commonly result in what kind of health
damage?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
https://canvas.liberty.edu/courses/742362/quizzes/3660179
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blood
fat
bones
lungs
brain
Question 3
1 / 1 pts
burial in a sanitary landfill
dilution in water
incineration at very high temperatures
recycling into new equipment
there is no method which is effective for disposing of this very toxic compound
Question 4
1 / 1 pts
PCBs
dioxin
lead
mercury
asbestos
Question 5
1 / 1 pts
dioxin and PCBs
asbestos and PCBs
lead and mercury
mercury and asbestos
asbestos and lead
Where do PCBs, dioxins, or any of the chlorinated hydrocarbons concentrate in living tissues?
What method is required for proper disposal of PCB-containing wastes?
To what toxic substance were large numbers of people inadvertently exposed in Seveso, Italy,
and Times Beach, MO?
Which two of the following toxic substances are capable of crossing the placental barrier and
causing severe fetal damage in humans?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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Question 6
1 / 1 pts
chloracne
lung cancer
anemia
mercury poisoning
mesothelioma
Question 7
1 / 1 pts
PCBs
methyl mercury
lead
arsenic
Agent Orange
Question 8
1 / 1 pts
PCBs
asbestos
lead
mercury
dioxin
Question 9
1 / 1 pts
PCBs
asbestos
lead
mercury
Prospecting methods employed by gold miners in Brazil are resulting in what serious public
health problem?
“Minamata Disease” killed or seriously disabled hundreds of Japanese who had inadvertently
eaten fish contaminated with:
Dentists and dental hygienists experience potentially threatening occupational exposure to
which toxic substance:
Which of the following is now banned from production, sale, and distribution in the U.S.?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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dioxin
IncorrectQuestion 10
0 / 1 pts
lung cancer
colon cancer
asbestosis
mesothelioma
stomach cancer
Question 11
1 / 1 pts
dioxin and arsenic
lead and PCBs
mercury and asbestos
asbestos and lead
dioxin and PCBs
Question 12
1 / 1 pts
guinea pigs
hamsters
mice
rats
humans
Question 13
1 / 1 pts
waste water discharges from paper mills
agricultural pesticide applications
cigarette smoke
What is currently the leading cause of asbestos-related death?
For which toxic substances do researchers say there is no safe level—no threshold below which
exposure will result in no adverse health impact?
Which of the following organisms is most acutely sensitive to the toxic effects of dioxin?
Which of the following is the leading source of dioxin emissions in the U.S.?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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landfilling of hazardous wastes
medical waste incinerators
Question 14
1 / 1 pts
inhalation of emissions from city incinerators
eating lead-contaminated seafood
eating vegetables grown in lead-contaminated soil
drinking water from lead-containing plumbing system
swallowing paint chips or paint dust
Question 15
1 / 1 pts
methyl mercury
lead
bisphenol A
PCBs
aflatoxin
Question 16
1 / 1 pts
less toxic to humans
not persistent
safe to use indoors
kill only target pests, not beneficials
insects can’t develop resistance to them
Question 17
1 / 1 pts
glyphosate
What is considered to represent the single most frequent cause of lead poisoning among
American children?
“Chloracne” is the first and most characteristic symptom of poisoning with which of the
following?
What characteristic of the organophosphate insecticides makes them more environmentally
acceptable than the chlorinated hydrocarbons?
Which of the following is a nonselective herbicide, capable of killing any plant it contacts?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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parathion
Paris green
paradichlorobenzene
permethrin
Question 18
1 / 1 pts
biomagnification
poor sanitation
target pest resurgence
secondary pest outbreaks
development of resistant strains of insects
Question 19
1 / 1 pts
population explosion of harmful insects as they acquire resistance to a pesticide
practice of crop rotation which deprives the primary pest of its food and encourages increase in predator
insect populations
population explosion of formerly insignificant pests which become economically important after spraying
eliminates most of their natural enemies
increasing concentration of a pesticide as it moves up a food chain, causing death or reproductive failure of
members of higher trophic levels
evolution of “super bugs,” as repeated pesticide applications become less and less effective
Question 20
1 / 1 pts
wrote the literary best-seller,
The Jungle
discovered that the DNA molecule is a double helix
developed the process of amniocentesis
discovered that DDT is effective for killing insects
first to demonstrate the link between cigarette smoking and lung cancer
In recent years there has been a sharp rise in the incidence of malaria in many tropical
countries due to
What is the basic cause of the phenomenon known as “secondary pest outbreak”?
For what accomplishment did Paul Muller receive a Nobel Prize in 1948?
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Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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Question 21
1 / 1 pts
late 19th century
after World War I—1918
after World War II—1945
after the Korean War—1953
during the Vietnam War—late 1960s
Question 22
1 / 1 pts
insecticidal spraying with DDT
use of insecticide-impregnated bednets
removing sources of mosquito breeding near homes
personal use of mosquito repellent
treatment of victims with chloroquine
Question 23
1 / 1 pts
herbicides
chlorinated hydrocarbon insecticides
organophosphate insecticides
carbamate insecticides
botanical insecticides
Question 24
1 / 1 pts
chiggers
dog ticks
black-legged ticks
human itch mites
bedbugs
When did DDT first come into widespread use?
Which of the following is no longer an effective method for controlling malaria?
Which of the following pesticidal groups is most acutely toxic to the pesticide applicator?
Lyme disease is a newly recognized ailment transmitted by the bite of which of these pests?
4/6/25, 9:13 PM
Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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Question 25
1 / 1 pts
bedbug
human itch mite
deer tick
brown recluse spider
scorpion
Question 26
1 / 1 pts
producers (e.g. phytoplankton)
primary consumers (e.g. zooplankton)
secondary consumers (e.g. small fish)
tertiary consumers (e.g. large fish)
quaternary consumers (e.g. pelicans)
Question 27
1 / 1 pts
ponds of stagnant water
dog feces
uncovered garbage
tall brush and weeds
tire casings
Question 28
1 / 1 pts
potato beetle
grasshopper
mosquito
Which of these pests is a problem because its bite results in a painful ulceration which may
take months to heal and leaves a large, permanent, ugly scar?
In which of the following groups of organisms would you expect to see the greatest effects of
pesticide biomagnification?
Which of the following would be a likely target of public health efforts to control breeding of the
Asian tiger mosquito?
Which of the following insects could not be controlled through use of a stomach poison?
4/6/25, 9:13 PM
Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
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caterpillar
cockroach
Question 29
1 / 1 pts
pests had developed resistance, so the poisons were no longer effective
these pesticides were too acutely hazardous for farm workers to handle safely
their use was threatening the extinction of bald eagles and other valuable wildlife
by killing beneficial species as well as pests, these pesticides were doing more harm than good
the chemicals had been shown to cause cancer in laboratory animals
Question 30
1 / 1 pts
biomagnification
synergism
biological controls
integrated pest management
teratogenesis
Quiz Score: 29 out of 30
What was the major reason EPA gave for banning the use of most chlorinated hydrocarbon
insecticides?
Minamata Disease, reproductive failure among peregrine falcons and eagles exposed to DDT,
and the death of western grebes at Clear Lake, CA, are all examples of:
4/6/25, 9:13 PM
Quiz: Toxins: HLTH505: Principles of Environmental Health (D01)
https://canvas.liberty.edu/courses/742362/quizzes/3660179
9/9
