Of the five modes of transportation, which one requires the lowest capital investment?
A) air B) water C) rail D) motor E) pipeline
D
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As a consumer's income rises, the proportion of income spent on food falls. This assertion is known as
A) Law of Diminishing Marginal Utility. B) Engel's Law. C) Law of Demand. D) None of the above
Dogs lack a natural instinct to herd animals and must be trained to do so
Indicate whether the statement is true or false
When straightness is connected to the surface of the feature with a leader, ____ is implied.
A. surface straightness B. axis straightness C. unit straightness D. zone straigthness E. none of the above
How did western Europeans at the time of the Renaissance obtain many unknown works by Greek philosophers and Roman humanists?
a. Greek scholars and theologians fleeing the Byzantine Empire carried the texts with them to Italy. b. German scholars and clerics fleeing the Mongols brought the works with them to Greece. c. Most were found buried in monasteries, where they had lain hidden in monastic libraries for centuries. d. Italian scholars excavating the ruins of ancient Rome discovered most of the lost texts in hidden catacombs.