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Question

Difficulty: MediumSentence-Level Transitions

Passage

Modern airports employ a variety of high-tech methods to prevent bird strikes, which can cause catastrophic engine failure during takeoff. Automated radar systems scan the skies, and sound cannons emit loud blasts to scare away flocks[1] . Consequently, many facility managers have found that these mechanical solutions are less effective over time as birds become habituated to the noise. Instead, airports are increasingly turning to falconry, using trained birds of prey to naturally deter other avian species from nesting near runways.

Which choice provides the most logical and grammatically correct transition between the two sentences?

  1. A
    NO CHANGE
  2. . However,Answer
  3. C
    . Furthermore,
  4. D
    , however,

Answer

The correct option is the one that uses a period followed by the contrasting transition '. However,'.
The correct answer is the option that presents '. However,'. The relationship between the first sentence (describing active bird mitigation efforts) and the second sentence (describing their eventual failure due to habituation) is contrasting. Thus, a contrast transition is needed. Grammatically, because both clauses are independent, they must be separated by a period, making this punctuation and word choice correct.

Step-by-Step Solution

1
Analyze the logical relationship between the sentence about using radar and sound cannons and the sentence about managers finding these solutions less effective.
The second sentence presents a limitation or drawback to the first sentence, indicating a relationship of contrast rather than cause-and-effect or addition.
Identifying the correct relationship allows us to eliminate transition words that convey the wrong logic.
2
Determine the grammatical structure of both clauses.
Both clauses ('Automated radar systems scan the skies...' and 'many facility managers have found...') are independent clauses that can stand alone as sentences.
Understanding the clause type ensures we apply proper punctuation rules to avoid sentence structure errors like comma splices.
3
Evaluate the choices for both logical fit and grammatical correctness.
The option '. However,' provides the appropriate contrast transition and properly separates the two independent clauses with a period.
This step ensures the chosen answer is both contextually logical and grammatically precise.

Key Concept

Selecting appropriate transition words based on the logical relationship between sentences and ensuring proper punctuation is used when joining independent clauses.
Estimated Time:1m 0s
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Topics

Sentence-Level Transitions

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