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Question
________ act as carbon sinks, and their removal, especially in areas where they are slow to recover, can reduce the biosphere's ability to absorb carbon dioxide from the atmosphere.Answer
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Related questions
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Scientists believe that fossil fuel use is contributing to warming of the lower atmosphere.
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Cassandras are ________.A) an invasive speciesB) people who believe technology will find new resourcesC) people who predict disasterD) followers of PlatoE) are a tribe of Australian Aborigines opposed to uranium mining
Q:
________ can be quantified as the number of individuals of a given species that can be sustained by the biological productivity in a given area.
A) Carrying capacity
B) Biodiversity index
C) Population size
D) Community structure
E) Distribution density
Q:
According to Edward O. Wilson, the most serious and threatening environmental problem is the ________.
A) introduction of invasive species
B) loss of biodiversity
C) loss of arable land to expanding cities
D) extensive use of pesticides and fertilizers
E) acid rain
Q:
The process by which several researchers review another researcher's manuscript prior to publication to ensure research quality is referred to as ________.
A) hypothesis testing
B) investigative inquiry
C) peer review
D) quality control
E) critical analysis
Q:
Ruben has a new puppy and wants to feed it the best possible food. He decides on an experiment where he will feed it the very best canned food plus a dietary supplement of vitamins recommended by a veterinarian. Which of the following best describes Ruben's project?
A) This is an example of a good controlled experiment.
B) Ruben needs to take measurements of the puppy's weight and height at least once a week for it to be a good experiment.
C) Ruben needs to control for the amount of exercise, water, and care that the puppy gets each week, so that they are equal from week to week.
D) Ruben needs to feed his mother's 6-year-old chocolate Shar-Pei a standard diet so he can compare his puppy with a control dog.
E) This is not an experimentthere are no controls or replicates.
Q:
Sachiko and Fred are having a discussion about the scientific method. Sachiko makes the comment that every time she sees people carrying open umbrellas, she also sees several small car accidents. This is a(n) ________.
A) hypothesis
B) theory about umbrellas
C) theory about car accidents
D) scientific study
E) observation
Q:
A town has uncovered an environmental problem that involves the local landfill leaching chemicals into the groundwater that is used by a neighbouring housing development. How will the interdisciplinary nature of environmental science help solve this problem?
Q:
How does the lesson of Easter Island apply to the modern world?
Q:
Differentiate between renewable and nonrenewable natural resources. Give examples of each.
Q:
Match the following.A) ecologyB) natural sciencesC) hypothesisD) qualitative dataE) dependent variableF) environmental studiesG) quantitative dataH) predictionI) independent variableJ) correlationK) experimental dataL) probability1. A scientific field of study2.Information expressed with numbers3.The variable that is manipulated4.Expectations of experimental outcome5.Numerical expression of the likelihood that a conclusion is true6.Social studies dealing with environment are part of
Q:
Many permafrost soils in the Arctic are peat soils.
Q:
Shelterbelts are to ________ as terraces are to ________.
A) wind erosion; water erosion
B) water erosion; wind erosion
C) leaching; desertification
D) stratification; salinization
E) salinization; stratification
Q:
The Canadian agency charged with slowing soil degradation is the ________.
A) Soil Aggregation Service
B) Agricultural Standards Agency
C) Conservation Integration Service
D) Soil Conservation Council
E) There is no Canadian agency charged with soil degradation, only volunteer firms funded by farmers.
Q:
Farmer John bought a field in which soils have lots of sand particles. This suggest that this soil will have ________.
A) high permeability
B) high capacity to hold water
C) high fertility
D) high cation exchange capactiy
E) low interconnectedness
Q:
What are the advantages of biochar?
Q:
The artificial provision of water to support agriculture is known as ________.
Q:
Climate change may change the patterns of precipitation. In an area with reduced precipitation, crops grown in which type of soil (clay-, silt- ,or sand-dominated) will be most vulnerable to drought and why?
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What is the basis for soil textural determinations? What are the specific components that determine soil texture?
Q:
How does climate explain the poor soils in the Amazon rainforests?
Q:
Explain the no-till method and discuss its pros and cons.
Q:
Discuss the factors that affect the severity of soil loss to wind erosion.
Q:
Which of the following is NOTthe reason why China's one-child policy did not stop the degradation of the environment?A) China's population is still growing.B) China's economy grew faster than the population.C) For China's government economic growth was more important than protecting the environment.D) The consumption level of the average Chinese person has increased.E) None of the above.
Q:
Aside from contraception, what can humans do to control population growth's negative effects on the environment?
A) encourage consumption
B) encourage emigration from Africa
C) discourage emigration from Africa
D) discourage population movement into sensitive environmental areas
E) discourage migration from rural areas to cities
Q:
What is a demographic transition? What are its four stages? State why each stage is important and what the consequence is for population growth. Do all countries go through the demographic transition?
Q:
What three-factor model is used for representing the impact on the environment? What is a fourth factor that could be added to this model? Give a simple explanation for each factor and describe what it means in terms of human impacts on the environment.
Q:
Why did China institute a population control policy? How is it enforced? Why is it controversial?
Q:
Urbanization drives TFR down.
Q:
Malthus was responsible for ________.
A) the book The Population Bomb, which described the disastrous effects of human population growth
B) the idea that, without social strictures, the increase in the human population would lead to famine and war
C) the concept that human population growth would lead to greater industry and prosperity through education
D) instituting fertilizer use for agriculture
E) the political stance that the environment was important in its own right
Q:
The most accurate terms describing the trend over the past 50 years in resource use for human energy and agricultural systems are ________.
A) increasing and unsustainable
B) decreasing and sustainable
C) steady state and sustainable
D) from unsustainable to sustainable
E) rapidly increasing, moving from unsustainable to sustainable