Reading ComprehensionDifficulty: Easy

PT126 S2 P2 Q7 Explanation

Purple Loosestrife

A free, expert breakdown of this official LSAT Reading Comprehension question.

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Passage

The following passages concern a plant called purple loosestrife. Passage A is excerpted from a report issued by a prairie research a journal of sociology.

Passage A Purple loosestrife (Lythrum salicaria), an aggressive and invasive perennial of Eurasian origin, arrived with settlers in eastern North America in the early 1800s and has spread across the continent’s midlatitude wetlands. The impact of purple loosestrife on native vegetation has been disastrous, with more than 50 percent of the biomass but no measure of the impact of this herbicide on native plant communities has been made.

With the spread of purple loosestrife growing exponentially, some form of integrated control is needed. At present, coping with purple loosestrife hinges on early detection of the weed’s arrival in areas, which allows local minimum damage to the native plant community.

Passage B The war on purple loosestrife is apparently conducted on behalf of nature, an attempt to liberate the biotic community from the tyrannical influence of a life-destroying invasive weed. Indeed, purple loosestrife control is portrayed by its practitioners as an environmental initiative intended to save nature rather than control it. Accordingly, according to the scientific community, and all of nature suffers under its pervasive influence.

Regardless of the perceived and actual ecological effects of the purple invader, it is apparent that popular pollution ideologies have been extended into the wetlands of North America. Consequently, the scientific effort to liberate nature from purple loosestrife has failed to decouple itself from its philosophical origin as an instrument to control hunting, trapping, and recreation revenues due to a decline in the production of the wetland resource.

What this question is testing

Locate Detail

Your task

Pin down exactly what the question asks about the passage — a detail, the author's view, the structure, or the main point — before looking at the choices.

Common trap

Answers that restate a true detail from the passage but don't answer the specific question being asked.

Winning move

Anticipate the answer in your own words from the passage, then find the choice that matches that prediction.

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

The question
7.

Both passages explicitly mention which one of

Answer choices

  1. Correct80% picked this

    furbearing

    Why this is right

    This appears in the 4th sentence of Passage A: ... but serious reductions in waterfowl and aquatic furbearer productivity have been observed. And it appears in the second to last sentence of Passage B: The impact of purple loosestrife on furbearing mammals is discussed at great length.

    Skill tested: Locate Detail · how this choice captures the passage's function is the move to repeat next time.

  2. Out of Scope: only A1% picked this

    This is supported in the final sentence of passage A's first paragraph. But "glyphosate" never appears in Passage B.

  3. Out of Scope: only B5% picked this

    the threat purple loosestrife poses to

    If we search "econ-" we see that economics is only discussed in the final sentence of passage B. In fact, the main point of Passage B is sort of saying, "Passage A only talks about environmental impact, but I know deep down they're worried about economic impact". In other words, Passage B thinks Passage A is disingenuous because Passage A doesn't mention the impact that purple loosestrife has on the economics of hunting and trapping.

  4. Out of Scope: only B2% picked this

    popular pollution

    Just like (C), this answer only appears in Passage B. If we do a search for "ideo-", we can see that "ideologies" are only discussed in the first sentence of passage B's second paragraph.

  5. Out of Scope: only B13% picked this

    literature on purple loosestrife

    If we search "liter-" we see that "literature" is only discussed in passage B (once in each paragraph). Passage A does discuss "purple loosestrife control" in its final paragraph, but it never discusses "the literature on purple loosestrife control".

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