Sustainability Science
Exam Answer Key
Course Introduction
Sustainability Science is an interdisciplinary course that explores the complex interactions between natural and human systems with the aim of understanding and addressing critical sustainability challenges. The course examines the principles, frameworks, and methods used to analyze issues such as resource management, climate change, biodiversity loss, and sustainable development. Students engage with case studies and real-world problems to assess how scientific knowledge can inform policies and practices that promote environmental stewardship, economic viability, and social equity, preparing them to contribute to sustainable solutions at local, regional, and global scales.
Recommended Textbook
Scientific American Environmental Science For A Changing World 3rd Edition by Susan Karr
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32 Chapters
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Chapter 1: environmental Literacy and Sustainability
Lessons From a Vanished Society
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Sample Questions
Q1) Which of the following is an example of a biocentric worldview?
A)catching a spider in your house and releasing it outside
B)exterminating all insects
C)viewing nature as existing only for us to use its resources
D)thinking the nitrogen and water cycles are as important as humans
E)believing animals exist to provide food for humans
Answer: A
Q2) Potential trade-offs to reforestation efforts do NOT include:
A)high cost.
B)water shortages.
C)fragmentation of habitats.
D)less land for agriculture.
E)All of these answers are potential trade-offs to reforestation efforts.
Answer: E
Q3) What does an environment include?
Answer: An environment includes the biological (living)and physical (nonliving)surroundings in which any given living organism exists.
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Page 3
Chapter 2: Science Literacy and the Process of Science
Fungal Attacker Threatens North American Bats
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Sample Questions
Q1) Cell theory states that all living organisms are made up of one or more cells.Which of the following statements is FALSE regarding this theory?
A)All living organisms discovered so far have been made of one or more cells.
B)A newly discovered organism is very likely to be made out of one or more cells.
C)Cells are the basic units of structure for all known living organisms.
D)No living organism will ever be discovered that is not made out of cells.
E)All of these answers are true.
Answer: D
Q2) In terms of manipulating variables,what is the difference between an observational study and an experimental study? Which type of study can test cause-and-effect relationships?
Answer: In an observational study,data are gathered in a real-world setting,without intentionally manipulating any variable.This can lead to correlative conclusions.In an experimental study,the independent variable is manipulated by the researcher to evaluate a cause-and-effect relationship.
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Chapter 3: Information Literacy and Toxicology Lead in the Water
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Sample Questions
Q1) Chemicals that can pass easily through cell membranes are called ________.
A)water soluble
B)fat soluble
C)fat insoluble
D)cell soluble
E)membrane insoluble
Answer: B
Q2) What is the relationship between persistence and biomagnification?
Answer: The longer a chemical remains in its present toxic state,the more chances an organism has to pick it up.Additionally,it is more likely to still be toxic when that organism is eaten by another organism.If a chemical has a low persistence,it is more likely to be broken down before it passes too far through the food chain.
Q3) The effects of lead on dopamine in mice show a(n)___________________.
A)decrease of 40%
B)decrease of 17%
C)increase of 40%
D)increase of 35%
Answer: A
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Chapter 4: Ecosystems and Nutrient Cycling Engineering
Earth
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Sample Questions
Q1) 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.
Q2) Which of the following is NOT a main nutrient cycle?
A)carbon
B)nitrogen
C)phosphorous
D)magnesium
E)All of these choices are main nutrient cycles.
Q3) In terms of the carbon cycle,how is combustion of fossil fuels different from burning biomass (wood)for fuel?
Q4) Which of the following is NOT an abiotic factor?
A)rock
B)mineral composition of soil
C)rainfall
D)bacterium
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Q5) If no new matter enters the system,how can Earth continue to exist?
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Chapter 5: Population Ecology Gray Wolves Return to Yellowstone
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Q1) Why might a minimum viable-population not be an ecologically effective population?
Q2) Subtracting the death rate from the birth rate gives the _____________.
A)biotic potential
B)carrying capacity
C)logistic growth
D)population growth rate
E)exponential growth
Q3) Why is it ultimately better for a population to have some resistance factors (that is,factors that reduce a population's size)?
Q4) Which of the following is TRUE based on the scenario?
A)Lynx control the hare population through bottom-up regulation.
B)The hare population would take a long time to bounce back from a sudden change in the environment.
C)Lynx control the hare population through top-down regulation.
D)The lynx population could quickly overshoot the carrying capacity.
Q5) Which species is most likely to be classified as an r-selected species?
A)Canadian lynx
B)snowshoe hare
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Q6) 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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Sample Questions
Q1) How does the introduction of an exotic predator species circumvent the natural predator-prey relationship?
Q2) The American honeybee population has been decimated by colony collapse disorder.What impact will the removal of the American honeybee have?
Q3) In terms of energy transfer,why can't trophic levels be in the shape of an inverted pyramid,that is,more quaternary consumers and fewer producers?
Q4) A key goal of the Everglades restoration is to increase the amount of water flowing through the Everglades.This should lead to the restoration of the wood stork population,in part through the increase in the availability of nesting trees due to restoring the ____________ relationship between alligators and storks.
A)predator-prey
B)mutualistic
C)parasitic
D)commensal
E)competitive
Q5) What is an indicator species,and why is it easier for scientists to study them as a measure of the health of an ecosystem rather than an entire ecosystem as a whole?
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Chapter 7: evolution and Extinction a Tropical Murder
Mystery
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Sample Questions
Q1) What is the heritable variation among individuals of a single population or within the species as a whole?
A)species diversity
B)genetic diversity
C)natural selection
D)coevolution
E)extirpation
Q2) Scientists have been studying natural selection on a certain species of lizard.They found the lizard lives in trees in a small forest,but only in the thick lower branches.Over time,the body size of the lizards has become larger and heavier to allow them to take advantage of the wide branches.This is an example of ____________ selection.
A)stabilizing
B)directional
C)disruptive
Q3) Some people insist that human activity is not affecting extinction rates.Many people point out that in the history of Earth,there were several periods of mass extinction before humans were around.As a scientist,what could you do to change their views?
Q4) What are four observations that natural selection is based on?
Page 10
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Chapter 8: Biodiversity Palm Oil Plantations Threaten
Tropical Forests
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Q1) What is the largest human-caused threat to biodiversity?
A)pollution
B)introduction of invasive species
C)illegal trade of animal body parts
D)habitat destruction
E)fair trade practices
Q2) Why do tropical areas typically have more biodiversity than colder or drier climates?
Q3) If an extirpated species is extinct in only one particular location,is this important or does the fact that it still exists in other places make the extinction not a big deal?
Q4) Take what you know about biodiversity and climate change.Which ecosystem do you think would be more resistant to the effects of climate change (to a point): one with a high level of biodiversity or one with a low level of biodiversity? Explain your answer.
Q5) The population of "fast food potatoes" would lack what kind of diversity: genetic,species,or ecological? explain your answer.
Q6) Why is increased genetic diversity tied to an increased chance of survival for populations?
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Chapter 9: Preserving Biodiversity a Forest Without Elephants
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Q1) Which of the following would be an example of a flagship species?
A)white warty-back pearly mussel
B)zebra mussel
C)brown tree snake
D)giant panda
E)red robin
Q2) What information can be obtained through DNA fingerprinting,and why is it important that DNA fingerprinting be done using microsatellite DNA regions? What is special about these regions?
Q3) You work with the International Union for Conservation of Nature (IUCN)on several threatened species.A threatened species is one
A)at risk for extinction.
B)extinct in the wild,but some individuals are still found in zoos or protected areas.
C)that is labeled as data deficient by the IUCN.
D)that needs specific habitat to survive.
Q4) In which protected area do you think an endangered species would best thrive?
Q5) Why would DNA fingerprinting be a useful tool to monitor some populations of endangered species?
Page 12
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Chapter 10: Human Populations the Kerala Model
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Sample Questions
Q1) As a country progresses from the preindustrial stage to the postindustrial stage,what will happen to the birth rate and death rate?
A)Both will increase.
B)Both will decrease.
C)Both will remain unchanged.
D)Birth rate will increase,and death rate will decrease.
E)Birth rate will decrease,and death rate will increase.
Q2) Why were population control measure taken by leaders of China and India in past years unsuccessful?
Q3) In which year did we begin to use more resources than we could replace in the long term?
A)1950
B)1960
C)1970
D)1980
E)1990
Q4) How does overconsumption in developed countries,such as the United States,affect countries in other regions,such as Asia?
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Chapter 11: Urbanization and Sustainable Communities
Creating Green Cities
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Sample Questions
Q1) How much more carbon dioxide does the country of Spain emit than the city of Barcelona?
A)3.4
B)10
C)6.6
D)2.3
Q2) The more sparsely populated towns beyond the immediate suburbs whose residents commute into the city for work are called ________________.
A)exurbs
B)super suburbs
C)rural areas
D)urban areas
E)urban sprawl areas
Q3) However,you have noticed while living in urban areas the city is usually warmer than the areas around it.This is due to a combination of:
A)too little vegetation,too much pavement,and high energy use.
B)too much vegetation,pavement,and energy use.
C)too little vegetation,pavement,and energy use.
D)too little vegetation,too much pavement,and lowered energy use.
Page 14
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Chapter 12: Environmental Health Eradicating a Parasitic Nightmare
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Sample Questions
Q1) Which of the following is NOT an example of a zoonotic disease?
A)Zika
B)Ebola
C)rabies
D)Guinea worm disease
E)chikungunya
Q2) In Guinea worm disease (GWD),which organism is a vector?
A)humans
B)copepods
C)Guinea worms
D)contaminated water
Q3) What was the main problem related to preventing Guinea worm disease in the Nigerian village where Ruiz-Tiben was working?
A)too much urbanization
B)habitat fragmentation
C)deforestation
D)human resistance to change
E)climate change
Q4) Why is the health of the natural environment one of the biggest influences on human health hazards?
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Chapter 13: ecological Economics and Consumption Wall to
Wall, Cradle to Cradle
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Q1) What ecosystem regulation and support service provides the most in billions of dollars each year?
A)food production
B)recreation
C)genetic resources
D)air quality
E)habitat
Q2) 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.
Q3) How many billions of dollars per year would human provisions cost if we had to supply them?
A)$673
B)$809
C)$502
D)$136
E)$583
Page 16
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Chapter 14: environmental Policy the World Tackles Ozone
Depletion
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Sample Questions
Q1) Which of the following is true of international environmental policy?
A)The process is slow and incremental.
B)Many meetings,negotiations,and votes are required.
C)Specific targets are identified.
D)Science helps to inform policy.
E)All of these answer choices are correct.
Q2) Describe how command and control regulation could be used to decrease gasoline usage in automobiles.How could incentive-based regulation be used to accomplish the same task?
Q3) Which wavelength is the most dangerous to living organisms?
A)UV-A
B)UV-B
C)UV-C
D)They are all equally dangerous to living organisms.
Q4) What is the chemical formula for ozone?
A)O<sub>2</sub>
B)C<sub>2</sub>F<sub>2</sub>Cl<sub>2</sub>
C)SF<sub>6</sub>
D)O<sub>3</sub>
E)CrO<sub>2</sub>Cl<sub>2</sub>
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Chapter 15: managing Solid Waste a Plastic Surf
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Q1) Tiny bits of plastic gather in specific areas of the world's oceans where strong currents circle around areas with very weak,or even no,currents.These regions are called
A)Bermuda triangles
B)gyres
C)pods
D)waterfills
E)neuston layers
Q2) What are the potential environmental consequences of disposing of waste via landfilling and incineration? What systems exist in each disposal method to try and prevent these potential problems?
Q3) Aquatic ecosystems are considered particularly vulnerable to plastic waste.Describe four ways that plastic waste can affect aquatic species and ecosystems.
Q4) What everyday changes can you make to reduce the amount of waste you produce?
Q5) Collecting and counting the pieces of plastic pulled up in the nets to measure the number of plastic bits found in one square kilometer would be considered which type of study?
A)experimental
B)observational
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Chapter 16: Freshwater Resources Toilet to Tap
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Q1) Which practice requires the greatest amount of water input?
A)flushing the toilet
B)taking a shower
C)making a cotton T-shirt
D)washing dishes
E)producing 1 pound of beef
Q2) Many countries have constructed dams and reservoirs as a method to solve water shortages.What are some of the problems associated with dams and reservoirs?
Q3) Which of the following would reduce the amount of infiltration of water into an aquifer?
A)paved roads
B)monoculture lawns
C)cement driveways
D)buildings
E)All of these answer choices are correct.
Q4) Explain why it is cheaper to conserve water than it is to purify it or build a dam.
Q5) What is one way you can help protect,or advise others in order to protect,your local aquifer?
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Chapter 17: Water Pollution Suffocating the Gulf
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Q1) If it is excess nutrients which are feeding the algae blooms and lowering the oxygen content in the water,that process is called
A)nitrification.
B)hypoxia.
C)eutrophication.
D)nutrient cycling.
Q2) What could be the effects of runoff and land use in the watershed that feeds the waters at the beach?
A)Water quality and quantity could both be affected.
B)Water quality but not quantity could be affected.
C)Water quantity but not quality could be affected.
D)Neither water quality nor quantity could be affected.
Q3) If you wanted to check the water quality in a stream that feeds a river in the watershed,what could you do?
A)check for insects and crayfish inhabiting the bottom of the stream.
B)look to see if the water looks crystal clear,which means the water is healthy.
C)examine the animals living around the stream for health problems.
Q4) Why are sources of point source pollution considered easier to "fix" than nonpoint source pollution sources?
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Chapter 18: marine Ecosystems Ocean Acidification: the
Other Co2 Problem
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Q1) How can we reduce threats to ocean ecosystems? Discuss three strategies to improve oceans and coasts,and explain the potential positive effects.
Q2) Why do corals need a mutualistic relationship with other species,like zooxanthellae?
A)Corals typically live in nutrient-poor regions.
B)Corals grow on top of one another
C)Corals live in cold water.
D)Corals live so deep that the sunlight cannot reach them.
E)Corals live in oxygen-poor water.
Q3) Scientists estimate _______ of all CO<sub>2</sub> released by humans is being absorbed by the world's oceans.
A)25%
B)30%
C)35%
D)40%
E)55%
Q4) Why is proximity to land an important factor in determining the abundance of an ocean region? Provide an example to support your reasoning.
Q5) Describe the complex relationship that coral have with zooxanthellae ("zooks").
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Chapter 19: Forests Returning Trees to Haiti
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Q1) Why are forests called carbon sinks?
A)Carbon drains out of forest biomes through groundwater running below the surface.
B)Forest biomes store more carbon than they release.
C)Carbon in forest biomes becomes trapped and is never released,even after logging occurs.
D)High amounts of water in forest biomes capture carbon and hold it there.
E)Forests pull carbon out of organic plant materials and transform it into atmospheric carbon.
Q2) Which of the following species can replenish the nutrients in soil?
A)mango trees
B)oak trees
C)mahogany trees
D)moringa trees
Q3) Which harvesting technique would result in more frequent profits and higher biodiversity than clear cut?
A)clear-cutting
B)strip harvesting
C)selective harvesting
D)shelterwood harvesting
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Chapter 20: soil Resources and Grasslands Restoring the Range
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Q1) Human activity has caused the degradation of grasslands.How has grassland degradation in turn affected humans?
Q2) One modern farming technique is to give livestock antibiotics to prevent infection and promote growth.These antibiotics are excreted in the fecal matter of the animals and are still active.What is the consequence of this practice on soil?
Q3) All of the following are examples of grasslands EXCEPT ____________________.
A)tundra
B)steppes
C)prairies
D)savannas
E)None of these answers are correct.
Q4) The grassland protection mechanism that helps to reduce soil erosion,reduce water pollution,and increase wildlife habitat is known as ______________________.
A)conservation easement
B)a conservation reserve program
C)park status
D)a shelterbelt
Q5) How does overgrazing lead to soil erosion?
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Chapter 21: Mineral Resources No Stone Unturned
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Q1) 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
Q2) Which of the following leads to the formation of sedimentary rock?
A)high heat and pressure
B)crystallization
C)melting
D)weathering
E)cooling
Q3) __________ refers to unwanted electronic devices such as televisions,computers,and cell phones,which contain recoverable metals but also toxic chemicals.
A)Electric pollution
B)Manufactured waste
C)E-waste
D)Nanotube waste
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Chapter 22: Feeding the World a Gene Revolution
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Q1) Which scenario would be found in a population that is food secure?
A)The only local food source is many miles away.
B)Regardless of income,members of the community have access to high-quality food.
C)The highest quality and quantity of food is given to those in positions of power.
D)The cost of high-quality food is prohibitive to many in the community.
E)The lowest grade of meat is sold only in stores in lower-income neighborhoods.
Q2) Why are many European countries opposed to the use of GMOs?
Q3) It is estimated that by 2050,the human population will reach 10 billion.While the ability to produce food has risen with population growth so far,increasing production for another 3 billion humans poses a tremendous challenge.Discuss how the gene revolution will likely be part of the solution to meeting future food demands.
Q4) What was the Green Revolution,and was it successful? Discuss pros and cons of this approach on the environment.
Q5) Describe how traditional selective breeding,where farmers attempt to produce offspring with valuable traits by breeding parents with those traits,is different from creating organisms with valuable traits using genetic engineering.
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Chapter 23: sustainable Agriculture: Raising Crops Farming
Like an Ecosystem
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Q1) ________ is a term that describes misleading claims about the healthiness of organic foods.
A)Greenwashing
B)Organic washing
C)Organic inaccuracy
D)Transgenic
E)Greencarding
Q2) Genetic diversity decreases in what type of farming?
A)sustainable
B)organic
C)commercial
D)monocultural
E)global
Q3) When using agroecology,Takao Furuno added ducklings to the rice paddies.What was one purpose of the ducklings?
A)eat all the azolla
B)flatten the young rice seedlings
C)eat all the rice seeds
D)provide fertilizer
E)encourage more ducks to come to the rice paddies
Page 26
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Chapter 24: Agriculture: Raising Livestock Can Meat Be Part of a
Healthy, Environmentally Conscious Diet
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Q1) In America,CAFOs have enabled all of the following EXCEPT _____.
A)the ability to grow many thousands more food animals
B)increased availability of inexpensive meat to people of rising affluence
C)cheaper fruits and vegetables
D)increased availability of inexpensive meat to low-income individuals
E)increased accessibility of meat to all people
Q2) According to the Food and Agriculture Organization of the United Nations,CAFOs produce more than _____ of all our animal food and account for _________ of all animal farms.
A)80%; 5%
B)75%; 10%
C)50%; 50%
D)90%; 90%
E)25%; 50%
Q3) The Beef Recall of 2007 was caused by contamination with _____.
A)genetically modified beef
B)ammonia
C)E.coli strain
D)antibiotics
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Q4) Do sustainable animal rearing methods address the disadvantages of CAFOs?
Chapter 25: Fisheries and Aquaculture Fish in a Warehouse
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Q1) Many nations have tried to protect their fisheries by the creation of ______,which extend 200 nautical miles from the coastline and give exclusive rights over marine resources.
A)inclusive economic zones
B)exclusive economic zones
C)exclusive fishing zones
D)marine protection areas
E)marine reserves
Q2) Which of the following is a benefit of recirculating aquaculture systems (RAS)in comparison with net or pen aquaculture?
A)Food in RAS systems is controlled by natural processes of the fish life cycle.
B)Fish require less food per pound.
C)Fish convert their food into flesh at a much higher rate.
D)All of these answers are correct.
E)Fish both require less food per pound and convert their food into flesh at a much higher rate.
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) Explain the difference between a marine-protected area and a marine reserve.
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Chapter 26: coal Bringing Down the Mountain
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Q1) Fossil fuels still account for ______ of U.S.energy production.
A)40%
B)50%
C)60%
D)70%
E)80%
Q2) Which of the following is NOT true about coal?
A)It has a high energy content.
B)It is a renewable resource.
C)Mining coal causes environmental damage.
D)Burning coal creates pollution.
E)It is formed over time by the compression and heating of peat.
Q3) In 2015,burning coal generated approximately ____ of electricity worldwide.
A)30%
B)40%
C)50%
D)60%
E)70%
Q4) What is meant by the phrase "external costs of coal," and what are the estimates of such costs on an annual basis?
Page 29
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Chapter 27: Oil and Natural Gas the Bakken Oil Boom
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Q1) How can a society increase its energy security?
A)develop alternative energy sources
B)increase energy efficiency
C)exploit local energy sources
D)reduce overall energy imports
E)All of these answer choices are correct.
Q2) Natural gas is seen as a bridge fuel to transition from oil to more sustainable options,since it _________________.
A)has more impurities than oil
B)is less efficient to burn
C)has a lower carbon footprint
D)releases more CO<sub>2</sub> than coal
E)releases more toxic pollutants
Q3) Why is flaring off of natural gas preferable to its release into the atmosphere?
A)Since it is actually methane,natural gas is a potent greenhouse gas.
B)It can spontaneously combust.
C)It doesn't cost as much.
D)There is less loss of harvestable gas.
E)Flaring off rids the gas of its impurities.
Q4) Explain how oil is extracted from Canadian tar sands.
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Chapter 28: Air Pollution the Youngest Scientists
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Sample Questions
Q1) ________ is one of the most common chronic childhood diseases in the United States and other developed nations and a major cause of childhood disability.
A)Arthritis
B)Heart disease
C)Lung cancer
D)Asthma
E)Skin cancer
Q2) What did the Clean Power Plan,approved in 2016,establish rules for?
A)regulating carbon monoxide
B)providing green taxes for polluters
C)removing sulfur dioxide from point source emissions
D)regulating carbon dioxide
E)using clean coal technology
Q3) What city showed the smallest reduction in relative mortality from 1974-1989 to 1990-1998?
A)St.Louis,Missouri
B)Topeka,Kansas
C)Watertown,Massachusetts
D)Harriman,Tennessee
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Page 31
Chapter 29: global Climate Change Climate Refugees
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76 Verified Questions
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Sample Questions
Q1) Which of the following is NOT a greenhouse gas?
A)carbon dioxide
B)methane
C)nitrous oxide
D)halocarbons
E)sulfur oxides
Q2) Climate models show that when we consider both anthropogenic and natural forcers together,the result is ____________.
A)observed temperatures match with the predictions of the model
B)observed temperatures are higher than the predictions of the model
C)observed temperatures are lower than the predictions of the model
D)we do not have enough data to predict how anthropogenic forcers are affecting temperatures
Q3) Accepting climate change as inevitable and adjusting as best as possible is referred to as __________.
A)adaptation
B)prescription
C)mitigation
D)stabilization
Q4) Describe the difference between weather and climate.Provide an example for each.
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Chapter 30: Nuclear Power the Future of Fukushima
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Sample Questions
Q1) What best describes alpha particles?
A)They have the greatest potential to cause serious health problems.
B)It takes thick concrete to stop them.
C)They can penetrate upper layers of skin.
D)They can be stopped by a sheet of paper.
E)They can be stopped by heavy clothing.
Q2) How do control rods regulate the rate of the nuclear reaction?
Q3) Which state produces the greatest percent of energy from fossil fuels and the least from nuclear energy?
A)Texas
B)South Carolina
C)Alabama
D)Washington
E)Nebraska
Q4) Where are spent fuel rods currently stored?
A)at long-term storage sites
B)in steel-lined pools
C)in Yucca Mountain,Nevada
D)underground in emptied magma chambers
E)in developing countries
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Chapter 31: Sun, Wind, Water, and Earth Energy Fueled by the Sun
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Sample Questions
Q1) What makes solar energy an unreliable energy source?
A)Photovoltaic cells have a lot of moving parts that produce noise.
B)Sunlight is intermittent,especially in high-latitude locations.
C)It has expensive start-up costs.
D)All of these answers are correct.
E)Sunlight is intermittent and solar energy has expensive start-up costs.
Q2) Wind turbines create electric energy by ____________________.
A)converting wind to steam in order to turn a generator
B)converting wind,through a series of gears,to turn a generator
C)allowing wind to blow directly into a generator to turn it
D)All of these answers are correct.
E)None of these answers is correct.
Q3) How does insulating pipes,using an on-demand water heater,and taking shorter showers save energy?
Q4) Which of the following converts the energy of the Sun directly into heating?
A)photovoltaic cells
B)wind turbines
C)biomass
D)solar thermal systems
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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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Sample Questions
Q1) Bioethanol that is produced by breaking down cellulose in plants is called
A)cellulosic ethanol
B)starch ethanol
C)plant ethanol
D)cellulose sequestering
E)cellulosic sequestering
Q2) Which of the following is the BEST option in terms of being environmentally friendly while operating a motor vehicle?
A)avoiding quick starts and speeding up to stop signs
B)removing golf clubs from the trunk unless going to the golf course
C)combining errands into one trip that minimizes driving miles
D)investing in a hybrid or all-electric car
E)biking or walking to work,to school,or to run errands
Q3) Which of the following is FALSE regarding biodiesel?
A)It is the only biofuel to be certified by the EPA.
B)It comprises only a small portion of the biofuels produced today.
C)It can be produced from soybeans as well as from animal fats.
D)It can be used in both diesel and gasoline engines.
Q4) List and describe at least three advantages and three disadvantages of biofuels.
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