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Question
Populations may grow exponentially for a time, but they eventually run up against limiting factors and level off at a ________.Answer
This answer is hidden. It contains 16 characters.
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E) observation
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Differentiate between renewable and nonrenewable natural resources. Give examples of each.
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Many permafrost soils in the Arctic are peat soils.
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Shelterbelts are to ________ as terraces are to ________.
A) wind erosion; water erosion
B) water erosion; wind erosion
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The Canadian agency charged with slowing soil degradation is the ________.
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E) There is no Canadian agency charged with soil degradation, only volunteer firms funded by farmers.
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Farmer John bought a field in which soils have lots of sand particles. This suggest that this soil will have ________.
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The artificial provision of water to support agriculture is known as ________.
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Explain the no-till method and discuss its pros and cons.
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Discuss the factors that affect the severity of soil loss to wind erosion.
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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.
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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
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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.
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Why did China institute a population control policy? How is it enforced? Why is it controversial?
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Urbanization drives TFR down.
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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
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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