Which factor most often causes voluntary migration?

A) economic
B) environmental
C) international
D) political
E) a regional conflict


Answer: A

Environmental & Atmospheric Sciences

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If a geographer wanted to use a geographic information system (GIS) to study soil contamination and determined that only the areas within 1.5 kilometers of a toxic waste dump needed to be considered and mapped, he/she would most likely choose. Which type of GIS function?

A) Buffering B) Kriging C) Area calculation D) Point-pattern analysis

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What chemical is responsible for depleting the Earth's ozone at a rapid rate?

a. DDT b. PCBs c. CFCs d. Carbon dioxide

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In what ways are geysers and undersea hydrothermal vent sites similar? What will be an ideal response?

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What is the dominant market sector in the U.S. and Canadian economies?

a. energy b. industrial c. manufacturing d. service e. knowledge

Environmental & Atmospheric Sciences