What is a key "take-home message" about Easter Island?
A) Making and placing large stone statues is a waste of time.
B) The invasive brown tree snake can wipe out an entire population of humans in a short amount of time.
C) Tropical soils are insufficient for growing enough crops for a population to be self-sustaining.
D) Humans that live in tropical areas will not die of exposure to extremely low temperatures.
E) An island population must live as responsible stewards of its resources.
Answer: E
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The "Golden Triangle", where several countries meet is a major source of opium and amphetamine production. All of the countries below meet in this area except:
A. China B. Thailand C. Malaysia D. Laos
The planetary albedo of the earth is:
A) 7%. B) 15%. C) 30%. D) 50%.
A ________, characteristic of the contemporary North American rural landscape, is characterized by farmers living on individual farms isolated from neighbors rather than alongside other farmers in settlements
A) clustered rural settlement B) dispersed rural settlement C) clustered linear rural settlement D) clustered circular rural settlement E) main street settlement
Rocks change from brittle to ductile behavior in a strength test if:
a. confining pressure is increased b. temperature is decreased c. strain rate is increased d. confining pressure is decreased