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Difficulty: MediumIdentifying Background Information and Contextual Claims

In marine archaeology, underwater sonar mapping has traditionally been restricted to shallow coastal waters because deep-sea acoustic signals decay rapidly. Recently, oceanographers developed low-frequency sonar transducers that transmit data across immense oceanic depths without significant signal degradation. Some archaeologists argue that this technological breakthrough will immediately render deep-sea robotic excavations obsolete. However, sonar mapping only identifies surface anomalies on the seabed rather than excavating buried artifacts. Therefore, deep-sea robotic submersibles will remain essential for underwater archaeological retrieval.

In the argument presented, what role does the claim that underwater sonar mapping has traditionally been restricted to shallow coastal waters play?

  1. It provides historical background information that sets up the context in which a new technological development emerged.Answer
  2. B
    It is a premise offered directly to support the main conclusion regarding the continued necessity of robotic submersibles.
  3. C
    It is an intermediate conclusion derived from the recent development of low-frequency sonar transducers.
  4. D
    It expresses the main position that the author's argument seeks to refute.
  5. E
    It serves as evidence supporting the archaeologists' view that robotic excavations have become obsolete.

Answer

The statement provides historical background information that sets up the context in which a new technological development emerged.
The claim regarding traditional sonar limitations describes historical context before the recent technological advancement. It does not act as evidence for or against the conclusion, but rather sets the stage for the narrative.

Step-by-Step Solution

1
Analyze the passage structure to identify the role of each sentence.
Sentence 1 provides traditional context; Sentence 2 introduces new sonar technology; Sentence 3 presents an opposing conclusion; Sentence 4 gives the author's counter-premise; Sentence 5 gives the author's main conclusion.
Determining structural roles requires evaluating how each sentence relates to the main conclusion.
2
Evaluate the targeted statement's relationship to the rest of the argument.
The targeted statement establishes historical background conditions prior to the recent development of low-frequency sonar transducers.
Background statements establish facts or historical context necessary to understand the situation without directly supporting or refuting the main argument.

Key Concept

Identifying Background Information and Contextual Claims
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Topics

Identifying Background Information and Contextual Claims

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