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Difficulty: EasyEvaluating Relevance for Adding or Deleting Content

In 1957, engineers Alfred Fielding and Marc Chavannes sealed two plastic shower curtains together, creating a sheet of trapped air bubbles. They initially attempted to market this textured material as a fashionable wallpaper, but the product did not sell. Next, they pitched it as insulation for greenhouses, which also proved unsuccessful. [1] Greenhouses are typically constructed of glass or plastic to allow sunlight to heat the plants inside. Finally, in 1960, IBM began using the material—now trademarked as Bubble Wrap—to protect its new computers during shipping, establishing its success as packaging material.

The writer is considering deleting Sentence 1 from the passage. Should this sentence be deleted?

  1. A
    No, because it explains the scientific reasoning behind why Bubble Wrap makes effective greenhouse insulation.
  2. B
    Yes, because it repeats information about plastic that is already mentioned in the first sentence of the passage.
  3. C
    No, because it provides a necessary transition between the inventors' failed wallpaper idea and their success with IBM.
  4. Yes, because it provides an unnecessary definition of a greenhouse that is irrelevant to the paragraph's focus on the development and marketing of Bubble Wrap.Answer

Answer

Yes, because it provides an unnecessary definition of a greenhouse that is irrelevant to the paragraph's focus on the development and marketing of Bubble Wrap.
The correct option correctly states that Sentence 1 should be deleted because it introduces an unnecessary definition of a greenhouse that is irrelevant to the paragraph's focus on the development and marketing of Bubble Wrap. The passage details the history of Bubble Wrap, and a general definition of what a greenhouse is does not support this narrative.

Step-by-Step Solution

1
Analyze the main focus of the paragraph.
The paragraph describes the history of Bubble Wrap, specifically how it was invented and the different ways it was marketed before finding success as a packaging material.
To determine if Sentence 1 is relevant, we must first understand the primary topic of the surrounding text.
2
Evaluate the function of Sentence 1 in the context of the paragraph.
Sentence 1 provides a general definition of a greenhouse. It does not add any information about the history, development, or marketing of Bubble Wrap.
This helps us decide whether the sentence supports the main topic or functions as a distraction.
3
Determine whether the sentence should be kept or deleted, and select the option with the correct reasoning.
The sentence should be deleted because it is irrelevant. The option stating that it provides an unnecessary definition of a greenhouse that is irrelevant to the paragraph's focus correctly identifies this rationale.
This matches both the decision (Yes, it should be deleted) and the rhetorical justification.

Key Concept

Evaluating Relevance for Adding or Deleting Content
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Evaluating Relevance for Adding or Deleting Content

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