Deck 17: Environmental Hazards and Human Health
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Deck 17: Environmental Hazards and Human Health
1

Hayat Sindi is a scientist who co-founded a nonprofit marketing company called ____ to bring low-cost health monitoring to remote,poor areas of the world.
A) Disease Diagnostics
B) Diagnostics for All
C) Diagnostics for Developing Countries
D) Diagnostics for Infectious Diseases
E) Affordable Diagnostics
B
2

Which of the following is considered a biological hazard?
A) disease-carrying pathogens
B) smoking cigarettes
C) drinking too much alcohol
D) natural flooding
E) unsafe working conditions
A
3

Since 1970,the occurrence of malaria has come roaring back in prevalence.Why?
A) Swamplands and marshes have been drained.
B) More vaccines exist.
C) Fewer vaccines exist.
D) Malaria-carrying species of mosquitos have become resistant to insecticides.
E) The use of insecticides in most countries has declined.
D
4

About half of the people with active tuberculosis will die from destruction of their ____.
A) lymph nodes
B) heart
C) brain
D) nervous system
E) lung tissue
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5

Which of the following is considered a cultural hazard?
A) smoking cigarettes
B) contagious viruses
C) having unsafe sex
D) earthquakes
E) unsafe working conditions
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6

About one in every ____ people infected with HIV is not aware of the infection.
A) 5
B) 10
C) 25
D) 50
E) 100
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7

Which of the following is considered a natural hazard?
A) driving
B) earthquakes
C) poverty
D) poor nutrition
E) infectious diseases
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8

Which viral disease is the biggest killer?
A) tuberculosis
B) AIDS
C) hepatitis B
D) influenza
E) West Nile
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9

About one-third of the toxic metal,mercury (Hg),is released into the air from natural sources,such as rocks,soil,volcanoes,and the ocean.The remaining two-thirds comes from ____.
A) automobile exhaust
B) airplane exhaust
C) mercury-rich plants
D) human activities
E) waste from livestock
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10

The West Nile virus is transmitted to humans by ____.
A) mosquitoes
B) houseflies
C) birds
D) physical contact
E) coughing and sneezing
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11

According to the World Health Organization (WHO),between 1970 and 2008,the percentages of all deaths worldwide resulting from infectious diseases ____.
A) increased and then leveled off
B) increased from 5% to 15%
C) increased from 15% to 35%
D) dropped from 35% to 15%
E) dropped from 15% to 5%
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12

The probability of suffering harm from a hazard that can cause injury,disease,death,economic loss,or damage is referred to as ____.
A) negligence
B) exposure
C) peril
D) dangerous
E) risk
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13

A global outbreak of an infectious disease is called a(n)
A) threat
B) parademic
C) pandemic
D) epidemic
E) outbreak
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14

Tuberculosis is caused by ____.
A) mosquitoes
B) flies
C) viruses
D) bacteria
E) protozoa
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15

Toxicity is rated according to the amount of a substance that is necessary to kill 50% of humans,given in milligrams per kilogram of body weight.A rating of supertoxic has an LD50 of ____.
A) less than 5 mg/kg
B) 5-50 mg/kg
C) 50-500 mg/kg
D) 500-5000 mg/kg
E) 5000-15000 mg/kg
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16

We risk falling behind in our efforts to prevent infectious bacterial diseases with the use of antibiotics because of the ____.
A) apathy of the general public
B) astounding reproductive rates of bacteria
C) lack of incentive for pharmaceutical companies to create these drugs
D) alarming rates of unprotected sex
E) increased rates of air travel
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17

Malaria is spread by ____.
A) snails
B) flies
C) contaminated feces
D) certain types of mosquitoes
E) bacteria
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18

Which of the following is a non-transmissible disease?
A) diabetes
B) influenza
C) hepatitis B
D) tuberculosis
E) HIV
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19

Which of the following is a transmissible disease?
A) heart disease
B) cancer
C) tuberculosis
D) malnutrition
E) asthma
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20

What is a transmissible disease?
A) A disease caused by something other than a living organism
B) A disease that does not spread from one person to another
C) A disease that can be passed from one person to another
D) A disease caused by cancer
E) A disease that will always lead to death
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21

A person experiencing dizziness after using a strong household cleaner is illustrating ____.
A) a chronic effect
B) a subchronic effect
C) an acute effect
D) a subacute effect
E) superacute exposure
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22

Ecological medicine is a new interdisciplinary field devoted to ____.
A) wildlife disease connections
B) tracking down disease connections between animals and insects
C) tracking down disease connections between insects
D) tracking down disease connections between animals and humans
E) finding ecologically based medicines for diseases
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23

What is an immediate or rapid harmful reaction to exposure to a chemical,ranging from dizziness to death?
A) bioaccumulation
B) acute response
C) persistence
D) chronic response
E) dose
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24

Which one of the following is one of the top five toxic substances in terms of human and environmental health?
A) lead
B) formaldehyde
C) tobacco smoke
D) DDT
E) nitrous acid
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25

A person experiencing liver damage after a lifetime of alcohol abuse is illustrating ____.
A) a chronic effect
B) a subchronic effect
C) an acute effect
D) a subacute effect
E) superacute exposure
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26

Teratogens ____.
A) are fatal to humans in low doses
B) cause birth defects
C) are harmful because they are irritating to skin or lungs
D) cause infections
E) cause allergic reactions
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27

The system responsible for defense against disease and harmful substances is the ____.
A) circulatory system
B) endocrine system
C) immune system
D) excretory system
E) skeletal system
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28

What term refers to a substance's resistance to breakdown?
A) toxicity
B) biomagnification
C) persistence
D) response
E) dose
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29

Carcinogens cause ____.
A) genetic defects
B) birth defects
C) cancer
D) chronic health effects
E) allergic reactions
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30

The Lyme disease bacterium is passed onto humans directly from ____.
A) foxes
B) deer
C) white mice
D) field mice
E) ticks
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31

Which statement is true?
A) All chemicals are unsafe.
B) Natural chemicals are safe,and synthetic chemicals are deadly.
C) Synthetic chemicals are deadly,and natural chemicals are safe.
D) Some chemicals,whether synthetic or natural,are safe and others are deadly.
E) All chemicals are safe except those that cause cancer.
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32

What term refers to the amount of a substance a person ingests,inhales,or absorbs through the skin?
A) toxicity
B) biomagnification
C) persistence
D) response
E) dose
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33

Natural and synthetic chemicals in the environment that can harm the human nervous system are called ____.
A) insecticides
B) herbicides
C) neurotoxins
D) chemotoxins
E) antibodies
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34

DDT,PCBs,atrazine,bisphenol-A,and phthalates are all examples of ____.
A) insecticides
B) hormonally active agents
C) estrogens
D) androgens
E) plastic additives
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35

Which of the following is among the seven most deadly infectious diseases?
A) asthma
B) diarrheal diseases
C) mumps
D) type 2 diabetes
E) leukemia
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36

What are chemicals used to soften polyvinyl chloride (PVC)plastic found in a variety of products,such as detergents,cosmetics,body lotions,soft vinyl toys,and shower curtains?
A) carcinogens
B) phthalates
C) estrogens
D) androgens
E) BPAs
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37

What term that is given to the health damage that occurs from exposure to a chemical or other agent?
A) toxicity
B) biomagnification
C) persistence
D) response
E) dose
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38

In 2003,the U.S.Environmental Protection Agency (EPA)proposed that in determining any risk,regulators should assume children have ____ times the exposure risk of adults to cancer-causing chemicals.
A) 5
B) 10
C) 15
D) 25
E) 100
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39

Research indicates that the BPA in plastics can leach into water or food when the plastic is ____.
A) at room temperature
B) chilled below freezing temperatures
C) older than five years
D) heated to high temperatures
E) exposed to basic solutions
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40

A complex network of glands that release tiny amounts of hormones into the bloodstream of humans and other vertebrate animals is the ____.
A) digestive system
B) endocrine system
C) excretory system
D) circulatory system
E) immune system
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41

Teratogens are chemicals that cause cancer.
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42

For people who do not take anti-viral drugs,it takes an average of three to five years for an HIV infection to progress to AIDS.
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43

People with AIDS are 30 to 50 times more likely to develop active tuberculosis.
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44

What is the study of the harmful effects of chemicals on humans and other organisms?
A) Multiple Chemical Sensitivity (MCS)
B) biological accumulation
C) epidemiology
D) toxicology
E) toxicity
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45

In terms of number of premature deaths per year and reduced life span,what is by far the greatest risk?
A) AIDS
B) poverty
C) smoking
D) malaria
E) industrial chemicals
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46

Statistically determining how much harm a particular hazard can cause is called risk management.
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47

How much of the American population is either overweight or obese?
A) one-quarter
B) one-third
C) one-half
D) two-thirds
E) three-fourths
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48

Research going back three decades shows that ____ causes people to overestimate risks and to worry more about unusual risks than they do about common everyday risks.
A) degree of optimism
B) fear
C) optimism bias
D) instant gratification
E) evaluation
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49

AIDS is a pandemic.
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50

Of the 80,000 registered synthetic chemicals in commercial use,only ____ have been adequately tested to determine whether they are carcinogens,teratogens,or mutagens.
A) 2%
B) 4%
C) 10%
D) 12%
E) 15%
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51

What is the ability of a substance to cause injury,illness,or death to a living system?
A) toxicity
B) biomagnification
C) persistent
D) response
E) dose
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52

Over the course of human history,malarial protozoa probably have killed more people than all the wars ever fought.
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53

A nontransmissible disease is caused by something other than a living organism.
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54

Cigarette smoking is the world's most preventable major cause of premature death among adults,resulting in one death every ____ seconds.
A) 2
B) 4
C) 6
D) 8
E) 10
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55

One significant source of mercury emissions into the atmosphere is from coal-burning power plants.
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56

In determining how much risk an individual is willing to accept,for most people,a one in ____ chance of dying or suffering serious harm from exposure to an environmental hazard is a threshold for changing their behavior
A) 100
B) 1,000
C) 10,000
D) 100,000
E) 1,000,000
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57

The most dangerous activity that individuals might do on a regular basis is to ____.
A) smoke cigarettes
B) drink alcohol
C) drink coffee
D) fly on airplanes
E) drive or ride in cars
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58

Viruses respond well to antibiotics.
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59

People who smoke one to two packs of cigarettes daily have how much higher risk of getting Alzheimer's disease?
A) 76%
B) 65%
C) 52%
D) 44%
E) 31%
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60

The greatest risk from exposure to low levels of methylmercury is brain damage in fetuses and young children.
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61

A(n)____________________ disease is an infectious disease that can be transmitted from one person to another.
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62

A(n)____________________ is an organism that can cause disease in another organism.
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63

A substance's resistance to breakdown is its ____________________.
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64

A large-scale outbreak of an infectious disease in an area or country is called a(n)____________________.
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65

Numerous studies of animals and humans suggest that males of species exposed to hormone blockers can become more feminized.
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66

____________________involves deciding whether or how to reduce a particular risk to a certain level and at what cost.
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67

Only 50% of the registered synthetic chemicals in commercial use have been screened for toxicity before they were deemed acceptable for use.
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68

The overuse of ____________________ for colds,flus,and sore throats can cause bacteria to develop genetic resistance.
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69

Type 2 diabetes is the world's most preventable major cause of premature death among adults.
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70

The term ____________________ refers to the probability of suffering harm from a hazard that can cause injury,disease,death,economic loss,or damage.
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71

In terms of the number of premature deaths per year and reduced life span,the greatest risk by far is ____________________.
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72

____________________ is the world's most preventable major cause of suffering and premature death among adults.
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73

The biggest viral killer is the _______________ virus.
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74

Under certain conditions in aquatic systems,bacteria can convert inorganic mercury compounds to highly toxic __________________,which can be biologically magnified in food chains and webs.
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75

A basic principle of toxicology is that any synthetic or natural chemical can be harmful if ingested in a large enough quantity.
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76

In the "lock-and-key" relationship of the endocrine system,the hormone is the "lock" and the receptor is the "key."
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77

Harmful ____________________ occurring in reproductive cells can be passed on to offspring and to future generations.
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78

The ____________________ of the human immunodeficiency virus (HIV)means that infected people often spread the virus for several years without knowing they're infected.
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79

____________________ is a measure of the harmfulness of a substance;that is,its ability to cause injury,illness,or death to a living organism.
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80

The ____________________ consists of specialized cells and tissues that protect the body against disease and harmful substances by forming antibodies.
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