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Logical Reasoning Practice Exam

A comprehensive logical reasoning practice examination covering argument analysis, assumptions, strengthening/weakening arguments, identifying flaws, and drawing inferences.

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Question 1

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Dental erosion is one of the most common tooth problems in the world today. It is caused by acid, usually from sugary drinks, which makes this sound like a modern issue. But lesions on teeth identical to those produced by modern dental erosion have been observed on the teeth of human ancestors dating back 2.5 million years. The statements above, if true, most strongly support which one of the following?

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A Dental erosion was one of the most common tooth problems for human ancestors 2.5 million years ago.

B As with the teeth of modern humans, the teeth of human ancestors were exposed to acid from some source.

C The teeth of human ancestors do not show signs of many of the most common tooth problems in the world today.

D The teeth of human ancestors were more vulnerable to dental erosion than are modern teeth.

E Sugary drinks were a part of the diet of human ancestors 2.5 million years ago

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Logical Reasoning Practice Exam

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