Reading comp PrepTest 116 · Section 1 · Question 1

Passage

Questions 1-5  .        The accumulation of scientific knowledge  . regarding the environmental impact of oil well  . drilling in Remaining source text redacted.
Passage walkthrough
Passage Summary

Topic: Science


Paragraph 1

  • Paragraph note
    • Generalization/Problem; example previewed
  • Views, minor Meta-Structures, and the author's attitude
    • Author’s view on generalization/problem:
      • Science lags behind oil drilling, so undesirable events happen before regulation
    • Example of problem:
      • Groundwater contamination
    • Author’s attitude: “relied on hindsight” (line 5); “undesirable events” (line 7); “problems” (line 7)

Paragraph 2

  • Paragraph note
    • Groundwater example: Early examples of regulations
  • Views, minor Meta-Structures, and the author's attitude
    • Example of problem with oil drilling:
      • Beginning of commercial drilling (~1893) - Regulations protected oil from groundwater, not other way around
      • This led to the contamination of drinking-water wells
    • Author’s attitude: “no thought was given” (line 18)

Paragraph 3

  • Paragraph note
    • Groundwater example: Cause of problem; attempts at solution
  • Views, minor Meta-Structures, and the author's attitude
    • Comparison:
      • Groundwater at shallower depth than oil/saline water
    • Cause-and-effect relationship:
      • Groundwater connected to oil and salt water, causing them to mix
    • Comparison of attempted solutions:
      • Sealing off groundwater — started with hollow trees, now with metal tubes with cement

Paragraph 4

  • Paragraph note
    • Author: Problems with that solution
  • Views, minor Meta-Structures, and the author's attitude
    • Author’s view:
      • Lack of knowledge means there might be problems
    • Examples of potential problems, according to the author:
      • Barriers may corrode, cement may dissolve; effects of bacteria/vibrations/chemistry are unknown
      • West Coast oil well had poor understanding of local geology and contaminated sea (caused international uproar)

Main Point: Attempts to regulate the oil industry are largely based on hindsight because so much of the science involved is still unknown, a problem illustrated by the issues associated with groundwater contamination by oil wells.

Key Lines?

Lines 4-7 - A generalization of problems present in an industry is presented

Line 18-22 - An example illustrating the generalization is described

Lines 28-33 - The cause of the problem in the example is described

Lines 38-41 - The author introduces an attempted solution (still in use)

Lines 45-52 - Examples of potential problems with the solution

Meta-Structure?

Generalization/Example: That this passage uses the Generalization/Example Meta-Structure becomes apparent with the last few words of Paragraph 1: “[Groundwater problems] provide a case in point.” That ending to the first paragraph tells us that the author is going to explore this one example to illustrate the generalization that they just made. This structure is reinforced as we read through the rest of the passage and see that the author doesn’t stray from a discussion of this example. When this Meta-Structure is present, the generalization is the main point, and the correct main point answer usually (but not always) references the specific example highlighted. So, here, the main point should reflect the author’s generalization that attempts to regulate the problems associated with the oil industry rely too heavily on hindsight, which is a major problem for this regulation. This leads us to our second primary Meta-Structure ...

Examples: Outside of the example that illustrates the author’s main point/generalization, the passage itself presents several examples of smaller points. Paragraph 2 presents a specific example of oil wells contaminating groundwater. Lines 45-52 provide examples of potential problems that could arise from an attempt to solve groundwater contamination that we don’t know enough about. And Line 55 introduces an example of regulations failing to protect groundwater. These are all potential sources of information for a question or two, so we should have them highlighted/underlined or noted.

Last Thoughts?

Many test-takers might conclude that this passage utilizes a Problem/Solution Meta-Structure, so let’s discuss that. The author does present a general problem — regulating the oil industry, which is difficult because the science lags behind the actual drilling of wells (Lines 1-7). The author then dives into a specific problem — groundwater contamination (Lines 7-10). Normally, when this Meta-Structure is present, the author’s solution is the main point. However, there’s a wrinkle here! The author doesn’t present a solution to the overall problem — only an attempted solution to the example problem. In Paragraph 3, the author talks about how the industry has tried to prevent groundwater contamination. The author isn’t sold on it being a complete or permanent solution (Lines 44-45), and this specific attempted solution doesn’t speak to a solution to the overall problem of the science lagging behind the practice of drilling oil wells. Becuase the author only discusses a solution to the “example” problem and not the “general” problem, we think the entire passage is better understood as a Generalization/Example passage, rather than a Problem/Solution passage. At any rate,, the main point shouldn’t include the author’s feelings on the solution for the “example” problem. The main point should reflect the author’s argument that the “general” problem doesn’t currently have a solution.

While we don’t think this passage uses a traditional Problem/Solution Meta-Structure, reflecting on how the problem and solution interact with the Generalization/Example Meta-Structure helps us appreciate the nuance in this passage. The author presents a general problem before discussing a specific example of it and a solution to that specific example. So, it’s important to know that the “example” solution isn’t a part of the main point of the passage — especially because the author doesn’t believe it’s a complete or permanent solution.

Question prompt

Which one of the Remaining source text redacted.
Why the credited answer is right

Credited answer: D

The notes below walk through why it fits the stem and how to eliminate the rest.

Question Type

Science

Strategy Overview

Reiterate the main point as we summarized it after reading through the passage, then find the answer that best matches with it

Answer Anticipation

As discussed in the Meta-Structure section above, this passage utilizes a Generalization/Example Meta-Structure Meta-Structure. In such a Meta-Structure,, the generalization is the main point, and the correct main point answer usually (but not always) references the specific example highlighted. So, here, the main point should reflect the Author’s generalization that attempts to regulate the problems associated with the oil industry rely too heavily on hindsight, which presents its own problems:“Attempts to regulate the oil industry are largely based on hindsight because so much of the science involved is still unknown, a problem illustrated by the issues associated with groundwater contamination by oil wells.”Let’s look for an answer choice that embodies these ideas.

Answer choices

  1. A
    Although now recognized as Remaining source text redacted.
    Why choice A is not credited

    (A) Does this answer choice contain the same ideas as our anticipated main point?

    Nope. Although the author argues that the solution of using large metal pipe casings to protect groundwater presents some hazards, the main point of the passage isn’t that this danger is inevitable. The passage uses the example of groundwater contamination to support a broader point about attempts to regulate the oil industry, so this answer is too limited in scope.

  2. B
    Widespread coastal contamination caused Remaining source text redacted.
    Why choice B is not credited

    (B) Does this answer choice contain the same ideas as our anticipated main point?

    No. While this is brought up at the end of the passage, it’s not the conclusion of the author’s argument. Rather, it’s yet another example of potential regulations being raised in hindsight, and so it supports the generalization that the author mentions in Paragraph 1.

  3. C
    Hindsight has been the Remaining source text redacted.
    Why choice C is not credited

    (C) Does this answer choice contain the same ideas as our anticipated main point?

    Not quite. While this answer addresses a part of the generalization raised by the author (hindsight being a driving force), it’s wrong for two reasons. First, it’s too strong. The author says that “[m]ost attempts” to regulate the industry have relied on hindsight. So we can’t support this answer, which calls it the only reliable means. Second, this answer choice doesn’t treat this type of hindsight regulation as problematic, which was a key facet of the author’s argument.

  4. D
    The risk of environmental Remaining source text redacted.
    Why choice D matches the stem

    (D) Does this answer choice contain the same ideas as our anticipated main point?

    Yes! The author brings up a generalization in Paragraph 1. The rest of the passage addresses one example of contamination associated with oil well drilling — groundwater contamination. This example illustrates that problems associated with oil wells are based on hindsight and insufficient knowledge. So, the main point/conclusion of the passage is the author’s generalization, which this answer choice accurately restates. While this answer choice doesn’t bring up the specific example, that’s OK. On a Generalization/Example passage, the correct main point answer can (but does not need to) references the specific example highlighted

  5. E
    Groundwater contamination associated with Remaining source text redacted.
    Why choice E is not credited

    (E) Does this answer choice contain the same ideas as our anticipated main point?

    Nope. First, this answer is focused on groundwater and not the generalization that that example was meant to support. Second, the author never blames the current regulations for the contamination. Even the contamination in the West Coast example was due to the subsurface geology, not the regulations.

What this tests

Question analytics

Based on historical answer selection rates for this question.

Answer choice distribution

  1. A 4%
  2. B 3%
  3. C 3%
  4. D Credited 87%
  5. E 2%

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