Which is the cheapest form of transportation relative to the factors of industrial location?
A. water
B. railroads
C. air freight
D. motor trucks
Answer: A
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Natural selection may favor traits that help organisms
A) survive. B) acquire mates. C) successfully raise offspring. D) all of the above
What grade of metamorphism occurs at a depth of 19 km and a temperature of 700 degrees C?
A) high-grade metamorphism B) medium-grade metamorphism C) low-grade metamorphism D) magma
Although muscovite, feldspar and quartz are not considered useful as index minerals, which of the following situations could be useful in determining the grade of metamorphism in a region?
A) the coexistence of muscovite, feldspar and quartz B) the disappearance of rocks containing muscovite and quartz C) the coexistence of feldspar and quartz D) the disappearance of rocks containing quartz
If an area is managed for maximum sustainable yield, and the area can support 500 organisms, how many organisms will be allowed to remain in the area?
a. 50 b. 100 c. 250 d. 500