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Scientists are concerned about the release of methane from the arctic because _______.

A
as a greenhouse gas methane is 20 times more potent than carbon dioxide
B
the mass of the arctic’s methane is comparable to that of the Earth’s coal beds
C
global warming appears to be accelerating its release
D
all of the above
24

Many cities in southeast Michigan are struggling with financial problems due to current economic conditions. At the same time, southeast Michigan is having one of the worst winters on record for snowfall amounts and hazardous road conditions. Which of the following unresolved problems would be a direct result of these two factors?

A
city workers working longer hours to keep up with the snowfall amounts
B
more city workers than the current financial budget can afford
C
less city workers to plow the streets causing an increase in the number of car accidents during the winter months
D
an increase in the number of damaged snow plows

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Topic Test Answers — Environmental Science S2…