Global Environmental Issues
Question Bank
Course Introduction
Global Environmental Issues explores the complex challenges facing the planet due to human activity and natural processes, including climate change, air and water pollution, loss of biodiversity, deforestation, and resource depletion. The course examines the scientific, social, economic, and political dimensions of these issues on a global scale, while analyzing case studies and the effectiveness of international policies and agreements. Students will gain a critical understanding of the interconnectedness of environmental systems and the importance of sustainable development, as well as the roles individuals and societies play in shaping a more resilient future.
Recommended Textbook
Scientific American Environmental Science For A Changing World 3rd Edition by Susan
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Page 2
Karr
Chapter 1: environmental Literacy and Sustainability
Lessons From a Vanished Society
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Sample Questions
Q1) How would you go about convincing a company to switch to renewable sources of energy?
Answer: There are a growing number of companies that are obtaining more of their energy from renewable sources of energy.You would need to explain how switching to renewable sources of energy will save money over the long term and also how the switch will result in less pollution and improved health for workers and the environment.
Q2) Which example illustrates a consequence of climate change?
A)deforestation
B)sea level rise
C)overconsumption
D)irrigation
E)burning fossil fuels
Answer: B
Q3) What is environmental science,and what fields of study does it rely on?
Answer: Environmental science is an interdisciplinary field of research that draws on the natural (for example,ecology)and social sciences (for example,anthropology)as well as the humanities (for example,literature)in order to understand the natural world and our relationship to it.
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Chapter 2: Science Literacy and the Process of Science
Fungal Attacker Threatens North American Bats
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Sample Questions
Q1) How long did it take to see a decrease in survival of bats exposed to the WNS fugus?
A)80 days
B)120 days
C)4 years
D)over 20 years
Answer: A
Q2) What did the observational study find?
A)A cause-and-effect relationship was found between bats and exposure to WNS fungus.
B)The winter count of bats in colonies where WNS was present declined after the appearance of WNS in the colony.
C)Bats who were not exposed to WNS fungus survived longer than bats who were exposed to the fungus.
Answer: B
Q3) Is the following a valid hypothesis? Cancer patients who are prayed for will have better outcomes compared with patients with similar prognoses (likely outcomes)who are not prayed for.
Answer: Yes.Predictions from the hypothesis are testable and falsifiable.
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Chapter 3: Information Literacy and Toxicology Lead in the Water
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Sample Questions
Q1) Which of the following is the term for chemicals that work together in the body to produce toxic effects greater than the sum of their individual effects would predict?
A)additive
B)synergistic
C)antagonistic
D)disruptive
E)agonistic
Answer: B
Q2) Which common logical fallacy is used when claiming there is no way to know the effect of lead,since humans are exposed to so many toxins; thus,we should do nothing about the use of lead?
A)red herring
B)false dichotomy
C)appeal to ignorance
D)ad hominem attack
E)hasty generalization
Answer: C
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Chapter 4: Ecosystems and Nutrient Cycling Engineering
Earth
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Sample Questions
Q1) Which is NOT an example of a terrestrial biome?
A)a temperate forest
B)an open ocean
C)a Mediterranean scrub
D)a savanna
E)a desert
Q2) Why is it difficult or impossible for ecologists to study the biosphere as a whole? Why is it useful to break down the biosphere into sections such as ecosystems,communities,and populations?
Q3) Which of the following could be considered a limiting factor for a species?
A)pH of the soil
B)temperature
C)level of humidity
D)dissolved oxygen levels in water
E)All of the choices listed above could be a limiting factor for a species.
Q4) If no new matter enters the system,how can Earth continue to exist?
Q5) What is a biome? What are the major factors that distinguish one biome from another?
6
Q6) Describe two abiotic factors that influence the distribution and makeup of biomes and how they do this.
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Chapter 5: Population Ecology Gray Wolves Return to Yellowstone
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Sample Questions
Q1) Human populations have exceeded the natural carrying capacity of the Earth.Pick the factor(s)that allows us to increase the carrying capacity for humanity.
A)fossil fuel-based agriculture
B)advancements in healthcare
C)habitat destruction
D)biotechnology
E)all of these answer choices are correct
Q2) Which of the following is true of r-selected species?
A)They usually give high parental care to their offspring.
B)They can live in unpredictable or seasonally changing environments.
C)They are slow to respond to environmental changes.
D)Their population size tends to be stable.
E)They have long life spans.
Q3) Deer mice have a high biotic potential.Therefore,they have a ______________.
A)high birth rate and high death rate
B)high birth rate and low death rate
C)low birth rate and high death rate
D)low birth rate and low death rate
E)none of the answer choices are correct
Q4) Why is weather considered to be a density-independent factor?
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Chapter 6: Community Ecology the Florida Everglades: a
Community in Cris
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Questions
Q1) Some species,like trees that thrive in the shade,can survive as long as their environment remains unchanged.A climax species ________________.
A)will survive until a disturbance causes a new ecosystem to move in
B)will survive any ecosystem disturbances
C)will decline after reaching the climax stage
D)will be the first things to grow in that area after a disturbance
E)are r-adapted species
Q2) One example of commensal interaction could be ________________.
A)snail kites and apple snails
B)gray squirrels and humans
C)bees and daffodils
D)leeches and alligators
E)gray squirrels and fox squirrels
Q3) During ecological succession in the Everglades,__________________ will move in as the sediment layer becomes thicker through time,outcompeting the
A)floating and submerged plants; cypress and willow trees
B)floating and submerged plants; sawgrass
C)cypress and willow trees; floating and submerged plants
D)cypress and willow trees; sawgrass
Page 9
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Chapter 7: evolution and Extinction a Tropical Murder
Mystery
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Sample Questions
Q1) A scientist notices that a lot more polar bears living in the warmer parts of the Arctic Circle have darker fur than they did 30 years ago.She wonders if this is an adaptation to global warming.Which of the following terms might help explain the increase in the number of darker polar bears?
A)genetic diversity
B)adaptation
C)evolution
D)selective pressure
E)All of the answer choices might explain the phenomenon.
Q2) Green and blue coral snakes are found in even numbers on an small isolated Pacific island.A hurricane hits the island and randomly kills the majority of the blue coral snakes.The remaining coral snakes repopulate the island,with green now being the predominant color.With regards to evolution,this change is considered an excellent example of ___________.
A)the founder effect
B)speciation
C)directional selection
D)natural selection
E)the bottleneck effect
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Chapter 8: Biodiversity Palm Oil Plantations Threaten
Tropical Forests
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Sample Questions
Q1) Which event would NOT lead to possible endemic species loss on a remote island?
A)hurricane
B)fire
C)deforestation
D)introduction of invasive species
E)All of these choices could lead to possible endemic species loss.
Q2) Which island would have the lowest number of endemic species?
A)A
B)B
C)C
Q3) Of the following ecosystems,which likely has the MOST biodiversity?
A)desert
B)lake
C)temperate forest
D)frozen tundra
E)tropical rain forest
Q4) Why do you think scientists know much more about the diversity of mammals than they do insects?
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Q5) How could the effects of global warming diminish ecosystem services? Use genetic,species,and ecosystem diversity in your answer.
Chapter 9: Preserving Biodiversity a Forest Without Elephants
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Q1) What is the effect on a population as more individuals die off?
A)genetic diversity increases,and the population becomes safer
B)genetic diversity decreases,and the population becomes vulnerable to extinction
C)genetic diversity decreases,and the population becomes safer
D)genetic diversity increases,and the population becomes vulnerable to extinction
Q2) Which ecosystem would yield the greatest benefit from ecosystem conservation efforts?
A)an ecosystem with high biodiversity
B)an ecosystem with low biodiversity
C)Ecosystem conservation efforts would benefit both ecosystems equally.
D)Ecosystem conservation efforts would not benefit either ecosystem.
Q3) What are some techniques employed by ecosystem conservationists?
A)reforestation
B)remediation
C)landscape conservation
D)monitoring of indicator species
E)All of these techniques are employed.
Q4) In which protected area do you think an endangered species would best thrive?
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Chapter 10: Human Populations the Kerala Model
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Sample Questions
Q1) Addressing which of the following will help countries lower their total fertility rates?
A)poverty
B)high infant mortality
C)lack of education for women
D)lack of job opportunities for women
E)All of the answer choices are correct.
Q2) More than half of the world's population lives in ____.
A)North America
B)South America
C)Europe
D)Asia
E)Africa
Q3) A less developed country with high infant mortality and extensive poverty has a total fertility rate (TFR)of 5.7.Very few women receive a secondary education,and most do not work outside the home.What pronatalist pressures can you identify? What strategies can you propose to successfully lower TFR in this country?
Q4) Why were population control measure taken by leaders of China and India in past years unsuccessful?
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Chapter 11: Urbanization and Sustainable Communities
Creating Green Cities
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Q1) Which of the following would NOT be a way to assess whether a city is "green," according to the Green City Index?
A)measuring emissions of specific air pollutants
B)tracking energy consumption of each person
C)measuring the percentage of waste that is recycled
D)calculating the amount of green space
E)All of the methods can measure how "green" the city is.
Q2) What makes a city "green"?
A)having policies to improve air quality
B)using more renewable energy than nonrenewable energy
C)using programs that reduce vehicle traffic in the city
D)increasing green space around the city
E)All of these answers make a city "green."
Q3) Which of the following can we do to help prevent suburban sprawl?
A)maintain open and agricultural land
B)establish urban growth boundaries
C)implement infill
D)build up rather than out
E)All of these answers are correct.
Page 14
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Chapter 12: Environmental Health Eradicating a Parasitic Nightmare
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Sample Questions
Q1) Why do you think such a high proportion of diarrheal diseases can be attributed to environmental factors?
Q2) About 72% of zoonotic disease,including Ebola,comes from which of the following?
A)environmental change
B)wildlife
C)air pollution
D)habitat loss
E)infected drinking water
Q3) Why is Guinea worm disease (GWD)not a zoonotic disease?
Q4) Environmental hazards are responsible for what percent of death and disease worldwide?
A)23
B)75
C)25
D)50
E)77
Q5) Why is it difficult to map cause-and-effect relationships of human hazards and disease?
Q6) Why is the health of the natural environment one of the biggest influences on human health hazards? Page 15
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Chapter 13: ecological Economics and Consumption Wall
to Wall, Cradle to Cradle
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Q1) An item most likely to be a part of a circular system would be _________.
A)a computer
B)coal
C)natural gas
D)an aluminum can
Q2) A computer company leases rather than sells its computers to consumers for a monthly fee.The company maintains the computers and replaces them as needed.The old computers are either refurbished or recycled.What does this business model represent?
A)cradle-to-cradle management
B)a circular system
C)green business
D)a service-oriented economy
E)All of these answer choices are correct.
Q3) Which of the following choices is considered natural capital?
A)oxygen
B)water
C)trees
D)fish
E)All of these choices are considered natural capital.
Page 17
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Chapter 14: environmental Policy the World Tackles Ozone
Depletion
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Sample Questions
Q1) What type of policy is needed when an environmental problem extends across national boundaries?
A)national
B)local
C)international
D)state
E)intranational
Q2) Which of the following is NOT characteristic of command and control regulation?
A)It directly changes the behavior of the regulated industry.
B)A one-size-fits-all approach may limit some industries' ability to use the most cost-effective methods to address their impact.
C)It is a market-based approach.
D)Regulatory agencies must have sufficient funding to enforce compliance.
E)It provides no incentive for companies to reduce pollution below mandated limits.
Q3) Where is ozone (O<sub>3</sub>)naturally broken down and formed?
A)troposphere
B)stratosphere
C)mesosphere
D)thermosphere
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Chapter 15: managing Solid Waste a Plastic Surf
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Sample Questions
Q1) Hazardous waste affects not only humans but also other living organisms in a variety of ecosystems when disposed of improperly.Explain how hazardous waste can affect different organisms and why it is important to reduce human use of these products.
Q2) Why are take-back laws important for waste management?
A)They encourage companies to design products which can be reused.
B)They encourage companies to produce fewer products.
C)They discourage consumers from buying products.
D)They require companies to create products using all biodegradable materials.
E)They outlaw using nondegradable materials in products.
Q3) What is the Great Atlantic Garbage Patch?
A)an area where garbage gets dumped into the Atlantic Ocean
B)an area with high densities of plastic in the Atlantic Ocean
C)a giant plastic island in the Atlantic Ocean
D)an island of waste that will be taken to the Atlantic Ocean
E)an area where waste can be biodegraded by the Atlantic Ocean
Q4) Many states in the United States have take-back laws which require manufacturers to take back some of their products (such as computers)after consumers have finished with them.How does this encourage companies to rethink their product design?
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Chapter 16: Freshwater Resources Toilet to Tap
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Q1) Desalination,the process that removes ________________ from water,is
A)bacteria; cheap
B)salt and other minerals; expensive
C)pollution; a biomimicry process
D)sewage; mandated by the federal government
E)organic matter; facilitated by reverse osmosis
Q2) Wetland filtration systems differ from traditional high-tech filtration systems in that
A)they create water that is not potable
B)they depend on nature to help purify sewage
C)they require a higher energy input than high-tech methods
D)none of these answers
E)they both create water that is not potable and depend on nature to help purify sewage
Q3) We can save the most water by using which type of electricity production?
A)nuclear energy
B)coal fired power plants
C)hydroelectric energy
Q4) Why is deforestation a problem in regard to the Earth's freshwater supply?
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Chapter 17: Water Pollution Suffocating the Gulf
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Q1) Which is NOT an aspect of the Clean Water Act?
A)regulating municipal point source pollution
B)setting pollution standards
C)allowing a small percentage of pathogens in recreational water
D)regulating industrial point source pollution
E)allowing a small percentage of pathogens in drinking water
Q2) The switch to growing foods that leak nitrogen into the soil has resulted in _________.
A)ahigher level of nitrogen in the watershed runoff
B)better nutrient content of the food
C)easier growing seasons for the farmers
D)poorer sales of produce
E)increased use of synthetic nitrogen
Q3) Let's say you become interested in studying the amount of water pollution in a stream that runs through your backyard.Without special equipment,how could you perform a biological assessment on the stream?
Q4) If eutrophication leads to the abundance of nutrients plants need to grow and survive,why is it considered a bad thing?
Q5) Discuss the pros and cons of using drainage pipes for agricultural fields.
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Chapter 18: marine Ecosystems Ocean Acidification: the
Other Co2 Problem
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Q1) Lower pH affects which coral developmental stage/process?
A)fertilization
B)larval development
C)settlement
D)fertilization,larval development,and settlement
E)both fertilization and settlement
Q2) When a solution becomes acidic,it contains a greater amount of which of the following?
A)H<sub>2</sub>O
B)OH<sup>-</sup>
C)CH<sub>4</sub>
D)H<sup>+</sup>
E)O<sub>2</sub>
Q3) You would expect to find barnacles,starfish,and mussels in which ocean zone?
A)abyssal
B)hadal
C)bathypelagic
D)intertidal
Q4) Why do ecologists consider coral reefs a keystone species?
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Q5) Describe the complex relationship that coral have with zooxanthellae ("zooks").
Chapter 19: Forests Returning Trees to Haiti
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Q1) Where would the forests you work in be located?
A)high latitudes
B)mid latitudes
C)low latitudes
Q2) Which statement is TRUE of selective harvest?
A)Fifty years after harvest,new growth is from the best trees.
B)There are high profits at the initial harvest,then no profits until the forest regrows.
C)The forest can be harvested again in less than 50 years.
D)The best trees are not harvested so that they can reseed the plot.
Q3) If your company harvests oak,hickory,and maple trees,which forest type do you work in?
A)tropical
B)boreal
C)temperate
Q4) You have been given the task of convincing a country to maintain its forests instead of converting them into large farms.What information would you present in your argument for keeping the forests?
Q5) One important functions of a forest is nutrient cycling.What nutrients does a forest normally recycle?
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Chapter 20: soil Resources and Grasslands Restoring the Range
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Q1) Which of the following processes contribute to the process of desertification?
A)overgrazing by livestock
B)global warming
C)soil erosion
D)overgrazing by livestock,global warming,and soil erosion
E)both overgrazing by livestock and global warming
Q2) Which of the following does NOT explain how grazing can be beneficial to a grassland?
A)Clipping off the top part allows the sunlight to get to the new shoots.
B)Hooves can break up soil,allowing water to penetrate.
C)Breaking up soil with hooves allows new seeds to germinate.
D)Defecation and urination from grazers adds phosphorus and nitrogen to the soil.
E)Chewing a grass down to its roots helps it rejuvenate.
Q3) The long root systems of native prairie grasses allow them to access greater supplies of water and generally pass through which three soil horizons?
A)R,C,and B
B)O,A,and C
C)O,A,and B
D)A,B,and C
Page 24
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Chapter 21: Mineral Resources No Stone Unturned
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Q1) Refer to Infographic 1.List five commonly used products that contain mineral resources.
Q2) Which of the following is best described as a naturally occurring chemical compound that exists as a solid with a predictable,three-dimensional,repeating structure?
A)metal
B)rock
C)element
D)mineral
E)ore
Q3) Which of the following contains mineral resources?
A)electronics
B)construction materials
C)vehicles
D)paints
E)All of these answer choices are correct.
Q4) High heat and pressure will lead to the formation of which type of rock?
A)igneous
B)metamorphic
C)sedimentary
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Chapter 22: Feeding the World a Gene Revolution
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Q1) Efforts from the Green Revolution resulted in _________.
A)enough food to feed every human on Earth
B)every human on Earth being fed a life-sustaining diet
C)less food produced than usual
D)the end of food insecurity
E)the end of malnutrition
Q2) What is another low-tech farming method employed by some farms in Africa?
A)herbicide-resistant crops
B)use of synthetic nitrogen fertilizer
C)growing only cash crops
D)planting trees around the farm plot
E)diverting rivers to flow through farm plots
Q3) What is a known problem associated with industrial agriculture?
A)greenhouse gas emission
B)water pollution
C)pesticide-resistant pests
D)the disappearance of local,small,family-owned farms
E)All are these answers are known problems.
Q4) How might the recent Ebola outbreaks in Africa affect the food security of affected countries?
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Chapter 23: sustainable Agriculture: Raising Crops Farming
Like an Ecosystem
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Q1) In this study,the FST compared traditional tillage (turning and breaking up the soil)with no-till treatments on different plots to examine the effect on crop growth.What would be the dependent variable in this experiment?
A)the traditional tilling method
B)the no-till method
C)the crop yield
D)the type of crop used
Q2) Many advantages and disadvantages are associated with sustainable farming techniques,for the environment,the consumer,and the farmer.Which of the following is FALSE?
A)Sustainable farming is more labor intensive than traditional farming.
B)More subsidies are available for farmers who use sustainable techniques.
C)Soil is not degraded as much when sustainable agricultural techniques are used.
D)Usually,organic products are more expensive to the consumer.
E)All of these answers are true statements about sustainable farming.
Q3) Which green bean would likely have a higher nutrient content?
A)one grown on a new industrial farm
B)one grown on an established industrial farm
C)They would both have the same nutrient content.
Page 27
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Chapter 24: Agriculture: Raising Livestock Can Meat Be Part of a Healthy, Environmentally Conscious Diet
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Q1) How much greenhouse gas emissions per pound could be saved if someone switched from eating beef to chicken?
A)97 kg
B)78 kg
C)9 kg
D)88 kg
E)19 kg
Q2) The _______ footprint refers to the amount of carbon dioxide or other greenhouse gases released by an action.
A)water
B)feed
C)carbon
D)environmental
E)ecological
Q3) The USDA only acknowledges free-range _____.
A)beef
B)pork
C)poultry
D)salmon
E)None of these answers is acknowledged as free-range by the USDA.
Page 28
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Chapter 25: Fisheries and Aquaculture Fish in a Warehouse
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Q1) The difference(s)between fishing and aquaculture is/are ___________.
A)fish populations in aquaculture operations are typically more genetically uniform than wild fish captured by fishing fleets
B)unlike fish harvested from the ocean,aquaculture operations have historically been much smaller,producing just enough fish to feed a family or a small village
C)the size of the catch in fishing is limited by the size of the wild population,whereas in aquaculture,fish production is primarily limited by the size of the area in which organisms can be grown
D)unlike fishing operations,aquaculture produces higher concentrations of waste that can pollute aquatic ecosystems in which they are housed
E)All of these answers are differences between fishing and aquaculture.
Q2) Explain the difference between a marine-protected area and a marine reserve.
Q3) Many countries have exclusive economic zones (EEZs).How are these EEZs supposed to protect fish populations,and what are the problems with EEZs?
Q4) Overfishing decimated the cod fisheries in North America.How can this information be used to educate other North American fisheries to prevent the same thing from happening?
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Chapter 26: coal Bringing Down the Mountain
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Q1) The hardest form of coal is _________________.
A)lignite
B)bituminous
C)peat
D)anthracite
Q2) Which of the following changes should Mountain Top Coal make to be more sustainable while producing energy?
A)close all mining sites to prevent any environmental damage
B)stop using mountaintop removal for coal mining
C)move all mining area to other countries
D)contribute more funding to combat health issues from mining
Q3) Which of the following choices has the highest energy return on energy investment ratio?
A)coal
B)wind
C)nuclear energy
D)natural gas
E)hydroelectric
Q4) How is acid mine drainage formed,and what are its effects on the environment?
Q5) What are some of the hazards associated with coal mining?
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Chapter 27: Oil and Natural Gas the Bakken Oil Boom
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Q1) How is fracking different from conventional oil wells?
A)It uses a quaternary production method.
B)It causes no environmental damage.
C)It uses fractures in the rock to release oil or natural gas.
D)It uses strip mining.
E)No chemicals are used in fracking.
Q2) The region that has the largest difference in percent of oil reserves compared to natural gas reserves is _________________.
A)Central and South America
B)Europe
C)North America
D)Eurasia
E)Middle East
Q3) Which natural occurrence has been linked with fracking sites in the United States?
A)monsoons
B)tornados
C)forest fires
D)earthquakes
E)hurricanes
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Chapter 28: Air Pollution the Youngest Scientists
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Q1) Which statement(s)about the Clean Air Act is/are TRUE?
A)The Clean Air Act is evidence that regulations can be effective as a pollution-reduction tool because the United States has seen major reductions in common air pollutants.
B)Under the Clean Air Act,the EPA sets air quality standards for ambient air,with the states being responsible for monitoring and enforcing compliance.
C)The Clean Air Act is subject to political wrangling,as evidenced by the introduction of several congressional bills designed to limit the EPA's ability to regulate air quality,specifically carbon dioxide (CO<sub>2</sub>).
D)Under the auspices of the Clean Air Act,the EPA approved greenhouse gas emission standards for light-duty vehicles (cars and trucks)that will require new vehicles to produce less greenhouse gas emissions.
E)All of these answers are true.
Q2) Douglas Dockery from Harvard University conducted a study to establish the link between air pollution and impaired health.Describe his study and what he found.
Q3) Why do lower-income and minority areas often have some of the worst outdoor air quality?
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Page 32
Chapter 29: global Climate Change Climate Refugees
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Q1) How will human health be affected by climate change?
A)More precipitation will reduce water stress in regions.
B)Insect-borne diseases will increase in both range and incidence.
C)More crops will be available to feed people.
D)Fewer allergies will be seen since plants will grow poorly.
E)Fisheries will adapt and there will be more seafood to eat.
Q2) Which of the following facilitate mitigation efforts on a national or global scale?
A)command and control regulations
B)tax breaks
C)carbon taxes
D)cap-and-trade policies
E)All of these answers are correct.
Q3) The cause of the vast majority of climate change can be attributed to
A)volcanoes
B)the burning of fossil fuels
C)cattle farming
D)crop production
E)forest fires
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Chapter 30: Nuclear Power the Future of Fukushima
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Q1) What is beta radiation?
A)ionizing particle radiation that consists of two protons and two neutrons
B)ionizing particle radiation that consists of electrons
C)ionizing high energy photons
D)ionizing particle radiation that consists of two protons,two neutrons,and two electrons
E)an electromagnetic wave
Q2) Which of the following choices for an isotope represents the greatest production of daughter atoms?
A)1 half-life
B)2 half-lives
C)3 half-lives
D)4 half-lives
E)5 half-lives
Q3) Which state produces the greatest percent of its energy from renewable sources?
A)Texas
B)South Carolina
C)Alabama
D)Washington
E)Nebraska
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Page 34
Chapter 31: Sun, Wind, Water, and Earth Energy Fueled by the Sun
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Q1) Iceland uses geothermal energy to produce electricity and heat.Why didn't the people of Samsø choose this energy source?
A)It is very expensive to use.
B)It isn't a very efficient energy source.
C)It works only in areas close to hot zones or fault lines like Iceland is.
D)It can't be used to produce electricity.
E)It is too cold in Samsø to use geothermal energy.
Q2) __________________ cells convert solar energy directly into electricity.
A)Passive
B)Photovoltaic
C)Active
D)Thermoelectric
Q3) What are the differences between active solar approaches and passive solar approaches?
Q4) Which of the following descriptions would you use for sustainable energy?
A)energy from sources that are replenished over short time scales
B)energy from sources that have a low environmental impact
C)energy from sources that are replenished over long time scales
D)energy from sources that are quickly used
Q5) How is electricity produced in a dry steam geothermal power plant?
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Chapter 32: Biofuels Gas From Grass
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Q1) Which of the following is a concern regarding early corn ethanol projects?
A)Corn production requires energy inputs like fertilizers and pesticides.
B)Considerable water is required to produce ethanol from corn.
C)The projects used as much (or almost as much)energy as they produced.
D)All of these answers are concerns.
E)None of these answers are concerns.
Q2) Which of the following is NOT a benefit of switching from corn ethanol to cellulosic ethanol?
A)potential to circumvent the food controversy by not occupying land that could support food crops
B)resistance to many pests and plant diseases
C)requirement of less fertilizer
D)consumption of less energy for production
E)ease of scaling up production
Q3) Which of the following is an annual plant?
A)corn
B)switchgrass
C)goldenrod
D)wheatgrass
Q4) Explain why there is a critical need for the development of biofuels.
Page 36
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