The answer to which of the following would be most helpful in evaluating the argument?
Is a college degree a requirement for being licensed as an electrician in Parker County?
Do all students majoring in computer technology who complete the course in electrical safety procedures at Parker County Technical College eventually graduate?
Is completion of a course in electrical safety procedures the only way a person licensed as an electrician in Parker County can have learned those procedures?
Is a period of practical apprenticeship a requirement for becoming a licensed electrician in Parker County but not for graduating from the college in computer technology?
Do any of the students at Parker County Technical College who are not majoring in computer technology take the course in electrical safety procedures?
14. Pollutants in the atmosphere can cause acid rain . While acid rain in itself cannot significantly affect the acidity of bodies of water into which it falls, it can greatly increase the acidity of nearby lakes by increasing the amount of decaying matter on a forest floor. A recent increase in the acidity of the water in Forest Lake, therefore, surely indicates that the rain falling nearby has become more acid.
Which of the following, if true, most seriously weakens the argument?
Even in areas without significant amounts of acid rain, most lakes in regions with vegetation similar to the vegetation around Forest Lake have acidity levels higher than those of other lakes.
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