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Practice Quiz
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1Environmental science is a combination of the disciplines involved with the natural sciences, social sciences and politics.
A)True
B)False


2Use of water from the Colorado River in the US for irrigation reduces the quality and quantity of water entering Mexico.
A)True
B)False


3Maintaining biodiversity benefits the ecosystem, but not the economy.
A)True
B)False


4An ecosystem's approach
A)Describes the environment
B)Counts the numbers of plants and animals
C)Examines the way the natural world is organized and the interactions of all its parts
D)None of the above


5Severe climates of the northern regions make this ecosystem less susceptible to mining and oil exploitation.
A)True
B)False


6Agriculture is a source of
A)Air pollution
B)Soil erosion
C)Siltation of rivers and lakes
D)All of the above


7The Midwestern US is dominated by
A)Agriculture
B)Wilderness
C)Public Lands
D)All of the above


8The Arid Western US is dominated by
A)Agriculture
B)Wilderness
C)Government lands
D)Private Lands


9Urban demand for water and agricultural demand for water in the dry western US has been successfully managed by the US government.
A)True
B)False


10Lands in the dry western US have deteriorated due to
A)Grazing
B)Introduction of grasses for livestock
C)Use of water for irrigation and urban development
D)All of the above


11Selling timber rights at a loss in the forested western US increases the chances of land preservation.
A)True
B)False


12The US has a ban on the cutting of any old growth forest in the western US.
A)True
B)False


13The Great Lakes and east coast river and harbor sediments are contaminated with bioaccumulating toxic chemicals dumped by industries.
A)True
B)False


14The South's economy relies predominantly only on
A)Forestry
B)Agriculture
C)Tourism
D)All of the above


15Environmental problems can be easily resolved by state governments.
A)True
B)False





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