Question 1

Which of the following bacteria would be most indicative of fecal contamination?

Accepted Answer

A)   Staphylococcus aureus
B)   Streptococcus pyogenes
C)   E. coli
D)   Enterobacter aerogenesE) B) and C)
F) A) and C)

Question 2

What type of bacteria is water tested for when determining its safety?

Accepted Answer

A)   Presence bacteria
B)   Indicator bacteria
C)   Confirming bacteria
D)   Yielding bacteriaE) A) and C)
F) A) and B)

Question 3

The primary phase of wastewater treatment ________.

Accepted Answer

A)   removes harmful microorganisms
B)   separates solid from liquid wastes
C)   increases the biological oxygen demand
D)   often uses ultraviolet radiationE) C) and D)
F) B) and D)

Question 4

The decomposition that occurs in a sanitary landfill is largely ________.

Accepted Answer

A)   aerobic
B)   anaerobicC) A) and B)
D) undefined

Question 5

What is the initial step in wastewater treatment?

Accepted Answer

A)   Skimming
B)   Aeration
C)   Chlorination
D)   DigestionE) A) and D)
F) B) and C)

Question 6

Which of the following is not true of coliforms?

Accepted Answer

A)   They are gram-negative, lactose-fermenting, and gas-producing bacteria
B)   They include E. coli, Enterobacter, and Citrobacter
C)   Coliform levels are not always directly correlated to E. coli levels
D)   Fecal coliform assays are very specific
E)   Coliform bacteriophages are currently used as good fecal indicatorsF) A) and D)
G) None of the above

Question 7

What chemical is used in both water purification and sewage treatment to give long-term disinfection?

Accepted Answer

A)   Fluorine
B)   Activated charcoal
C)   Copper sulfate
D)   Chlorine
E)   All of the choices are correct.F) A) and E)
G) B) and E)

Question 8

Monitoring of drinking water and recreational water is done by testing for indicator bacteria. Indicator bacteria ________.

Accepted Answer

A)   are bacteria typically found in the mammalian mouth, nose, and throat
B)   are bacteria typically found in the mammalian gastrointestinal tract
C)   are bacteria known to proliferate in aquatic environments and fish
D)   are bacteria known to cause human diseaseE) A) and B)
F) None of the above

Question 9

Most of the oil released into the Gulf of Mexico during the Deepwater Horizon explosion was biodegraded by microorganisms.

Accepted Answer

A) True 
 B)False

Question 10

As wastewater moves through the wastewater treatment process, its biological oxygen demand increases.

Accepted Answer

A) True 
 B)False

Question 11

Potable water is ________.

Accepted Answer

A)   contaminated
B)   polluted
C)   safe to drink
D)   foul tasting
E)   None of the choices are correct.F) A) and E)
G) A) and C)

Question 12

Using microbes to break down or remove toxic wastes in water and soil is called ________.

Accepted Answer

A)   decomposition
B)   synergism
C)   mineralization
D)   bioremediation
E)   recyclingF) A) and C)
G) B) and E)

Question 13

All of the following are factors that contribute to the increase in Lyme disease cases in the United States except ________.

Accepted Answer

A)   increased pollution of lakes and rivers
B)   decrease in areas of farmland
C)   increase in areas of woodland
D)   warming trends
E)   suburban development expanding into natural areasF) A) and B)
G) All of the above

Question 14

The use of "coliform" and "E. coli" when discussing potable water is interchangeable.

Accepted Answer

A) True 
 B)False

Question 15

Coliforms, used as indicator bacteria, are gram-negative bacteria that ferment lactose and produce gas.

Accepted Answer

A) True 
 B)False

Question 16

The secondary phase of wastewater treatment is largely ________.

Accepted Answer

A)   physical
B)   biological
C)   chemical
D)   irradiationE) B) and D)
F) A) and B)

Question 17

HIV did not begin to spread throughout the African continent until the 1970s.

Accepted Answer

A) True 
 B)False

Question 18

Global warming increased the mosquito population in the Southwest during the 1990s, which led to an outbreak of hantavirus pulmonary syndrome.

Accepted Answer

A) True 
 B)False

Question 19

In which step of water purification does water move through sand beds and activated charcoal?

Accepted Answer

A)   Chlorination
B)   Aeration and settling
C)   Sedimentation
D)   Storage
E)   FiltrationF) D) and E)
G) None of the above

Question 20

Which diseases are predicted to increase as a result of global climate change?

Accepted Answer

A)   Malaria and cholera
B)   Malaria and bacterial meningitis
C)   Bacterial meningitis and cholera
D)   MRSA infections and bacterial meningitis
E)   Campylobacter infections and E. coli infectionsF) C) and D)
G) A) and E)

Exam 22: One Health: the Interconnected Health of the Environment, Humans, and Other Animals

Global warming increased the mosquito population in the Southwest during the 1990s, which led to an outbreak of hantavirus pulmonary syndrome.

Correct AnswerverifiedShow Answer

Monitoring of drinking water and recreational water is done by testing for indicator bacteria. Indicator bacteria ________.

Correct AnswerverifiedShow Answer

Which of the following is not true of coliforms?

Correct AnswerverifiedShow Answer

What is the initial step in wastewater treatment?

Correct AnswerverifiedShow Answer

What type of bacteria is water tested for when determining its safety?

Correct AnswerverifiedShow Answer

Which of the following bacteria would be most indicative of fecal contamination?

Correct AnswerverifiedShow Answer

HIV did not begin to spread throughout the African continent until the 1970s.

Correct AnswerverifiedShow Answer

Coliforms, used as indicator bacteria, are gram-negative bacteria that ferment lactose and produce gas.

Correct AnswerverifiedShow Answer

Potable water is ________.

Correct AnswerverifiedShow Answer

The use of "coliform" and "E. coli" when discussing potable water is interchangeable.

Correct AnswerverifiedShow Answer

The secondary phase of wastewater treatment is largely ________.

Correct AnswerverifiedShow Answer

Which diseases are predicted to increase as a result of global climate change?

Correct AnswerverifiedShow Answer

The primary phase of wastewater treatment ________.

Correct AnswerverifiedShow Answer

In which step of water purification does water move through sand beds and activated charcoal?

Correct AnswerverifiedShow Answer

What chemical is used in both water purification and sewage treatment to give long-term disinfection?

Correct AnswerverifiedShow Answer

As wastewater moves through the wastewater treatment process, its biological oxygen demand increases.

Correct AnswerverifiedShow Answer

All of the following are factors that contribute to the increase in Lyme disease cases in the United States except ________.

Correct AnswerverifiedShow Answer

The decomposition that occurs in a sanitary landfill is largely ________.

Correct AnswerverifiedShow Answer

Using microbes to break down or remove toxic wastes in water and soil is called ________.

Correct AnswerverifiedShow Answer

Most of the oil released into the Gulf of Mexico during the Deepwater Horizon explosion was biodegraded by microorganisms.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified