Logical ReasoningDifficulty: Easy

PT111 S3 Q8 Explanation

Opponent of offshore oil drilling:

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsWeaken

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Stimulus

Opponent of offshore oil drilling: The projected benefits of drilling new oil wells in certain areas in the outer continental shelf are not worth the risk of environmental disaster. The oil already being extracted from these areas currently provides only 4 percent of wells would only add one-half of 1 percent.

Proponent of offshore oil drilling: Don’t be ridiculous! You might just as well argue that new farms should not be allowed, since no new farm could supply the total for more than a few minutes.

What this question is testing

Weaken

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
8.

Which one of the following, if true, most weakens the drilling

Answer choices

  1. Correct88% picked this

    New farms do not involve a risk analogous to that run by new

    Why this is right

    New farms do not involve a risk analogous to that run by new offshore oil drilling. This answer weakens the proponent’s analogy by pointing out a significant difference. While new oil drilling carries significant environmental risks, new farms do not pose a comparable risk. Thus, this key difference undercuts the analogy.

    Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.

  2. No Impact1% picked this

    Many of the largest oil deposits are located under land that is

    No one was ever suggesting that where we drill for oil and where we farm are the same place. The proponent used farming as an analogy, but wasn't suggesting that farming involves overlapping parcels of land.

  3. No Impact4% picked this

    Unlike oil, common agricultural products fulfill nutritional needs rather than

    This is somewhat tempting, because it also seems to disrupt the oil / farm analogy, but the distinction has less to do with arguing that we shouldn't allow new drilling. Nutritional needs and fuel requirements are both very important things to a functioning society, so even though that's a difference between oil and farms, it doesn't hurt the proponent's analogy. He could say, "Since farming and oil drilling both provide very important things to a functioning society, and since no one farm or drilling field will be enough to support society on its own, we should approve new farms and new drilling fields."

  4. No Impact1% picked this

    Legislation governing new oil drilling has been much more thoroughly articulated than has that

    This is somewhat tempting, because it also seems to disrupt the oil / farm analogy, but the distinction has nothing to do with arguing that we shouldn't allow new drilling. We weren't ever saying we shouldn't allow for new drilling because "the legislation isn't thoroughly enough articulated". We were saying we shouldn't allow it because of the potential environmental damage.

  5. Irrelevant Comparison6% picked this

    The country under discussion imports a higher proportion of the farm products it needs than it does of

    This also presents a difference relating to oil vs farms, but we don't care about the ratio of domestic to imported oil is higher or lower than the ratio of domestic to imported farm products. The proponent was never thinking both products had a similar domestic/imported ratio. The proponent is only saying, "since no one farm is enough to supply our needs, we should approve new farms. Similarly, since no one oil field is enough to supply our needs, we should approve new oil fields."

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