Medical geographers have observed that the world-wide spread of HIV/AIDS from its hearth in Central Africa is best explained by a(n) ________ diffusion pattern

A) expansion
B) hierarchical
C) contagion
D) combination of expansion and hierarchical


Answer: B

Environmental & Atmospheric Sciences

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What will be an ideal response?

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Discuss the role of the International Whaling Commission (IWC) in regulating commercial whaling

What will be an ideal response?

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Indicate whether the statement is true or false.

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The distance between lines of longitude is equal across the globe

a. True b. False Indicate whether the statement is true or false

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