Exam 13: Human Environment

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In 1990,_____________ had similar patterns of fossil fuel sources emissions of CO?.

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C

The Little Ice Age put an end to a period of flourishing ____________ in Ming Dynasty China.

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D

The climatic record documenting the beginning of the Little Ice Age was partially pieced together by using farmer's diaries.Those of _________ were most useful.

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B

__________liters of water are required to produce one kilogram of beef.

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Of the U.S.landfills for the disposal of low level radioactive waste,___ percent are now open.

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The greatest threat to human existence to come from any source was a volcanic eruption occurring about 73,500 years ago.The volcano was called _______________

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Discuss some of the reasons that many environmental problems are now considered global rather simply regional or local in nature.Give several examples.

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Oil is a finite resource.

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A tsunami's waves result from ______________

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The eruption of the Tambora volcano on the island of Sumatra resulted in what has been called the "year without a summer" in Europe and America.That year was ______________

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Biologists estimate that there may be as many as ____ million types of organisms on Earth.

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Global warming began about 18,000 years ago and is a characteristic of the Holocene.

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What have trends in global biodiversity been in the past few centuries? What are some of the causes of loss of biodiversity and what are some implications?

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Mortality risk from natural disaster is greatest in developed countries.

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List some of the causes of deforestation.Discuss the implications of this destruction.What could humanity lose when the rain forests are gone?

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The world distribution of precipitation is concentrated in ________________

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Residents of middle-America face high mortality risks and natural disasters in what form?

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The amount of forest cutting that has gone on wherever humans locate has been very extensive.In the United States,for example,forests consist mainly of _______ trees.

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In 2004,which countries had per capita emissions of carbon dioxide of less than one metric ton?

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Forests affect the atmosphere through their role in (the)________________

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