Logical Reasoning

PT21 · S2 · Q5 Irrigation runoff from neighboring

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Irrigation runoff from neighboring farms may well have increased the concentration of phosphorus in the local swamp above previous levels, but the claim that the increase in phosphorus is harming the swamp’s native aquatic wildlife is false; the phosphorus concentration in the swamp is actually less than that found in certain kinds of bottled water that some people drink every day.

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

5.

The argument is vulnerable to criticism on the ground that it

  1. makes exaggerations in formulating the

    Trap

    2% picked this

  2. bases its conclusion on two

    Trap

    4% picked this

  3. Correct

    relies on evidence the relevance

    Why this is right

    Answer C is correct.

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

    86% picked this

  4. concedes the very point that

    Trap

    3% picked this

  5. makes a generalization that is

    Trap

    5% picked this

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