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18 Nov 2010, 13:30
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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Please could someone explain the rationale here. Correct Answer is D
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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18 Nov 2010, 15:40
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Since we have a weakening question, let's begin by paraphrasing the argument:
What we learned in the lab about fullerenes will teach us about fullerenes outside of the lab.
Next, let's identify the author's assumption: laboratory fullerenes are substantially the same as real world fullerenes.
Finally, let's make our prediction. To weaken an argument, predict an answer that attacks the author's assumption. Here:
Lab fullerenes are significantly different than real world fullerenes.
Armed with our prediction, we attack the choices, looking for a match:
a) no distinction - eliminate.
b) no distinction - eliminate.
c) no distinction - eliminate.
d) a difference! If the naturally occurring fullerenes are unique, then what we learned in the lab won't teach us anything about the natural world. Choose (d)!
Since we found a match for our prediction, we should confidently choose (d) and move on. However, let's step into "review mode" and take a quick peek at (e):
e) no distinction - eliminate.
What we learned in the lab about fullerenes will teach us about fullerenes outside of the lab.
Next, let's identify the author's assumption: laboratory fullerenes are substantially the same as real world fullerenes.
Finally, let's make our prediction. To weaken an argument, predict an answer that attacks the author's assumption. Here:
Lab fullerenes are significantly different than real world fullerenes.
Armed with our prediction, we attack the choices, looking for a match:
a) no distinction - eliminate.
b) no distinction - eliminate.
c) no distinction - eliminate.
d) a difference! If the naturally occurring fullerenes are unique, then what we learned in the lab won't teach us anything about the natural world. Choose (d)!
Since we found a match for our prediction, we should confidently choose (d) and move on. However, let's step into "review mode" and take a quick peek at (e):
e) no distinction - eliminate.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Critical Reasoning (CR) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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