Question 1

A risk manager would do which of the following?

Accepted Answer

A)  determine the neurological effects of a new herbicide 
B)  establish rules restricting the use of a new herbicide 
C)  set the purchase price of a new herbicide 
D)  assess the LD50 level of a new herbicide 
E)  determine the level of exposure of farm workers to a new herbicide 
A)  determine the neurological effects of a new herbicide 
B)  establish rules restricting the use of a new herbicide 
C)  set the purchase price of a new herbicide 
D)  assess the LD50 level of a new herbicide 
E)  determine the level of exposure of farm workers to a new herbicide

Question 2

Which of the following describes a scenario involving pesticide drift?

Accepted Answer

A)  Pesticides are copied by companies producing generic varieties, but the generic varieties have greater toxic effects than the original pesticides. 
B)  Pesticides contain carcinogens that cause cancer in the workers using the chemicals. 
C)  Pesticides leach into groundwater aquifers, sickening those who use the aquifers for drinking water. 
D)  Pesticides being used in a mountain valley are carried by air currents into the surrounding hills, killing amphibians living in the hills' streams. 
E)  Pesticides run off into a local waterway that flows into a nearby fishing lake, killing some of the sensitive species of fish that live in the lake. 
A)  Pesticides are copied by companies producing generic varieties, but the generic varieties have greater toxic effects than the original pesticides. 
B)  Pesticides contain carcinogens that cause cancer in the workers using the chemicals. 
C)  Pesticides leach into groundwater aquifers, sickening those who use the aquifers for drinking water. 
D)  Pesticides being used in a mountain valley are carried by air currents into the surrounding hills, killing amphibians living in the hills' streams. 
E)  Pesticides run off into a local waterway that flows into a nearby fishing lake, killing some of the sensitive species of fish that live in the lake.

Question 3

The European Union's experience with polybrominated diphenyl ethers (PBDEs) has shown that .

Accepted Answer

A)  economic factors have superseded health concerns 
B)  if the toxin is removed from the environment, concentrations in human tissues fall 
C)  human metabolism of these compounds could solve the problem without legislation 
D)  exposure to these molecules results in birth ratios of 9 males : 1 female 
E)  these molecules can be rapidly metabolized by decomposers 
A)  economic factors have superseded health concerns 
B)  if the toxin is removed from the environment, concentrations in human tissues fall 
C)  human metabolism of these compounds could solve the problem without legislation 
D)  exposure to these molecules results in birth ratios of 9 males : 1 female 
E)  these molecules can be rapidly metabolized by decomposers

Question 4

A student wants to test the toxicity of water on corn plants. After providing different amounts of water to different groups of corn plants for the duration of a growing season, the student graphed the results. The graph is most likely to look like which of the dose -response curves depicted above?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 5

Which of the following is a cultural hazard?

Accepted Answer

A)  flooding 
B)  a high -fat diet 
C)  Zika virus 
D)  an earthquake 
E)  UV radiation from the sun 
A)  flooding 
B)  a high -fat diet 
C)  Zika virus 
D)  an earthquake 
E)  UV radiation from the sun

Question 6

Synergistic effects of toxicants .

Accepted Answer

A)  always involve synthetic toxicants 
B)  are greater than the sum of the effects of the components 
C)  are not numerous in the natural environment 
D)  have effects of individual toxicants that tend to cancel one another out 
E)  typically exhibit additive effects of the individual toxicants 
A)  always involve synthetic toxicants 
B)  are greater than the sum of the effects of the components 
C)  are not numerous in the natural environment 
D)  have effects of individual toxicants that tend to cancel one another out 
E)  typically exhibit additive effects of the individual toxicants

Question 7

Rachel Carson's book Silent Spring focuses primarily on the environmental problems associated with .

Accepted Answer

A)  invasive species 
B)  deforestation 
C)  pesticide toxicity 
D)  aquifer depletion 
E)  overpopulation 
A)  invasive species 
B)  deforestation 
C)  pesticide toxicity 
D)  aquifer depletion 
E)  overpopulation

Question 8

is a naturally occurring substance that is potentially toxic to people.

Accepted Answer

A)  DDE 
B)  Radon 
C)  Carbon dioxide 
D)  Bisphenol A (BP
A)  
E)  PCB 
A)  DDE 
B)  Radon 
C)  Carbon dioxide 
D)  Bisphenol A (BP
A)  
E)  PCB

Question 9

Bisphenol -A is _.

Accepted Answer

A)  a currently used herbicide 
B)  an estrogen mimic that is used in plastic manufacturing 
C)  a banned insecticide 
D)  released from aerosol spray cans 
E)  produced when fossil fuels are burned 
A)  a currently used herbicide 
B)  an estrogen mimic that is used in plastic manufacturing 
C)  a banned insecticide 
D)  released from aerosol spray cans 
E)  produced when fossil fuels are burned

Question 10

Carcinogens may be difficult to identify because _ .

Accepted Answer

A)  there is a long lag time between exposure to the agent and disease 
B)  they are the least common toxicants 
C)  there is no way to measure the carcinogenic potential of a substance 
D)  they are rare in nature 
E)  most are invisible 
A)  there is a long lag time between exposure to the agent and disease 
B)  they are the least common toxicants 
C)  there is no way to measure the carcinogenic potential of a substance 
D)  they are rare in nature 
E)  most are invisible

Question 11

Why are many contaminants found at higher concentrations in polar bears and people living in Greenland than they are in bears and people living in temperate and tropical areas?

Accepted Answer

A)  Polar bears and people living in Greenland eat penguins, which are naturally high in toxic contaminants. 
B)  The ice sheets in Greenland, which provide both people and polar bears with fresh water, were contaminated as a result of the Chernobyl nuclear accident. 
C)  Most of Greenland's GDP comes from importing toxic chemicals for disposal deep beneath its ice sheets. 
D)  There are fewer regulations regarding the release of toxic pollutants in Greenland than in other regions of the world. 
E)  Global atmospheric circulation carries airborne toxins toward the poles, where their deposition exceeds evaporation. 
A)  Polar bears and people living in Greenland eat penguins, which are naturally high in toxic contaminants. 
B)  The ice sheets in Greenland, which provide both people and polar bears with fresh water, were contaminated as a result of the Chernobyl nuclear accident. 
C)  Most of Greenland's GDP comes from importing toxic chemicals for disposal deep beneath its ice sheets. 
D)  There are fewer regulations regarding the release of toxic pollutants in Greenland than in other regions of the world. 
E)  Global atmospheric circulation carries airborne toxins toward the poles, where their deposition exceeds evaporation.

Question 12

Louis Guillette is well known for his studies of in Florida.

Accepted Answer

A)  the neurological effects of pesticide poisoning in flamingos 
B)  the contamination of soil near orange orchards 
C)  the effects of DDT on tadpole development 
D)  reproductive and developmental abnormalities in alligators 
E)  gonadal abnormalities in frogs 
A)  the neurological effects of pesticide poisoning in flamingos 
B)  the contamination of soil near orange orchards 
C)  the effects of DDT on tadpole development 
D)  reproductive and developmental abnormalities in alligators 
E)  gonadal abnormalities in frogs

Question 13

According to a 2002 study by scientists at the National Water -Quality Assessment Program (NAWQA), % of U.S. streams contain traces of wastewater contaminants.

Accepted Answer

A)  less than 1 
B)  100 
C)  50 
D)  10 
E)  80 
A)  less than 1 
B)  100 
C)  50 
D)  10 
E)  80

Question 14

The regulates pesticides in the United States.

Accepted Answer

A)  FDA 
B)  BLM 
C)  USDA 
D)  EPA 
E)  PRA 
A)  FDA 
B)  BLM 
C)  USDA 
D)  EPA 
E)  PRA

A risk manager would do which of the following?

Which of the following describes a scenario involving pesticide drift?

The European Union's experience with polybrominated diphenyl ethers (PBDEs) has shown that .

A student wants to test the toxicity of water on corn plants. After providing different amounts of water to different groups of corn plants for the duration of a growing season, the student graphed the results. The graph is most likely to look like which of the dose -response curves depicted above?

Which of the following is a cultural hazard?

Synergistic effects of toxicants .

Rachel Carson's book Silent Spring focuses primarily on the environmental problems associated with .

is a naturally occurring substance that is potentially toxic to people.

Bisphenol -A is _.

Carcinogens may be difficult to identify because _ .

Why are many contaminants found at higher concentrations in polar bears and people living in Greenland than they are in bears and people living in temperate and tropical areas?

Louis Guillette is well known for his studies of in Florida.

According to a 2002 study by scientists at the National Water -Quality Assessment Program (NAWQA), % of U.S. streams contain traces of wastewater contaminants.

The regulates pesticides in the United States.

Science and Sustainability: an Introduction to Environmental Science

Environmental Systems: Matter, Energy, and Ecosystems

Evolution, Biodiversity, and Population Ecology

Species Interactions and Community Ecology

Economics, Policy, and Sustainable Development

Human Population

Soil, Agriculture, and the Future of Food

Biodiversity and Conservation Biology

Forests, Forest Management, and Protected Areas

Environmental Health and Toxicology

Geology, Minerals, and Mining

Fresh Water, Oceans, and Coasts

Atmospheric Science, Air Quality, and Pollution Control

Nonrenewable Energy Sources, Their Impacts, and Energy Conservation

Renewable Energy Alternatives

Managing Our Waste

The Urban Environment: Creating Sustainable Cities

Sustainable Solutions

Answers to Data Analysis Questions

How to Interpret Graphs

Metric System

Periodic Table of the Elements

Geologic Time Scale Glossary Credits Index

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Exam 14: Global Climate Change

A risk manager would do which of the following?

Which of the following describes a scenario involving pesticide drift?

The European Union's experience with polybrominated diphenyl ethers (PBDEs) has shown that .

A student wants to test the toxicity of water on corn plants. After providing different amounts of water to different groups of corn plants for the duration of a growing season, the student graphed the results. The graph is most likely to look like which of the dose -response curves depicted above?

Which of the following is a cultural hazard?

Synergistic effects of toxicants .

Rachel Carson's book Silent Spring focuses primarily on the environmental problems associated with .

is a naturally occurring substance that is potentially toxic to people.

Bisphenol -A is _.

Carcinogens may be difficult to identify because _ .

Why are many contaminants found at higher concentrations in polar bears and people living in Greenland than they are in bears and people living in temperate and tropical areas?

Louis Guillette is well known for his studies of in Florida.

According to a 2002 study by scientists at the National Water -Quality Assessment Program (NAWQA), % of U.S. streams contain traces of wastewater contaminants.

The regulates pesticides in the United States.

Science and Sustainability: an Introduction to Environmental Science

Environmental Systems: Matter, Energy, and Ecosystems

Evolution, Biodiversity, and Population Ecology

Species Interactions and Community Ecology

Economics, Policy, and Sustainable Development

Human Population

Soil, Agriculture, and the Future of Food

Biodiversity and Conservation Biology

Forests, Forest Management, and Protected Areas

Environmental Health and Toxicology

Geology, Minerals, and Mining

Fresh Water, Oceans, and Coasts

Atmospheric Science, Air Quality, and Pollution Control

Nonrenewable Energy Sources, Their Impacts, and Energy Conservation

Renewable Energy Alternatives

Managing Our Waste

The Urban Environment: Creating Sustainable Cities

Sustainable Solutions

Answers to Data Analysis Questions

How to Interpret Graphs

Metric System

Periodic Table of the Elements

Geologic Time Scale Glossary Credits Index

Filters