Would you use a physical model or a conceptual model to describe the following: a gold coin, dollar bill, car engine, air pollution, virus, spread of sexually transmitted disease?
A) conceptual model-gold coin, car engine, virus; physical model-air pollution, spread of sexually transmitted disease, dollar bill
B) physical model-gold coin, car engine, virus; conceptual model-air pollution, spread of sexually transmitted disease; dollar bill, which could represent wealth, may well be described by either model.
C) physical model-gold coin, dollar bill, car engine; conceptual model-virus, air pollution, spread of sexually transmitted disease
D) You could adequately describe all of the topics by either model. The choice depends only on the characteristics requiring description.
B
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What is the underlying geologic explanation for why western South America is so different from eastern South America?
A. The western side marks a plate divergence and the eastern side marks a plate convergence. B. The western side is a plate boundary and the eastern side is not. C. The eastern side is a plate boundary and the western side is not.
On the ECG, an Osborne wave can be recognized as:
A) a negative deflection that produces a biphasic P wave. B) acute widening of the QRS complex during the R wave. C) an upward slurring at the beginning of the QRS complex. D) a positive deflection immediately after the QRS complex.
Which Act provided funding for the development of state and local waste management programs?
A) 2006 REACH Act B) 1970 Resource Recovery Act C) 1980 CERCLA Act D) 1899 Rivers and Harbors Act E) 1965 Solid Waste Disposal Act
A specific landform produced by the deposition of glacial till is known as
A) glacial drift. B) outwash. C) a moraine. D) alluvium.