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Zorluk: ZorClause Boundaries and Linking

In the high-altitude regions of the White Mountains of California, dendrochronologists study ancient bristlecone pines to reconstruct historical precipitation patterns spanning several millennia. Because these long-lived trees grow extremely slowly in arid environments, they are highly sensitive to climate changes ______ their narrow annual rings provide a precise, year-by-year record of local drought history.

Which choice completes the text so that it conforms to the conventions of Standard English?

  1. changes; consequently,Cevap
  2. B
    changes,
  3. C
    changes
  4. D
    changes, but

Cevap

The correct choice is the punctuation and transition that uses a semicolon followed by the conjunctive adverb 'consequently' and a comma to link the two independent clauses.
The text contains two independent clauses: the first ends with the word 'changes' and the second begins with the word 'their'. Standard English grammar requires that two independent clauses be separated by a period, a semicolon, or a coordinating conjunction preceded by a comma. The punctuation in the correct option ('changes; consequently,') appropriately uses a semicolon and a transition word showing cause-and-effect to connect the two clauses.

Adım Adım Çözüm

1
Identify the structure of the clauses surrounding the blank.
The clause before the blank ('Because these long-lived trees grow extremely slowly in arid environments, they are highly sensitive to climate changes') and the clause after the blank ('their narrow annual rings provide a precise, year-by-year record of local drought history') are both independent clauses.
Determining the clause types helps establish the punctuation rules that must be applied to avoid structural errors.
2
Evaluate the grammatical rules for joining independent clauses.
Two independent clauses must be joined using a period, a semicolon, or a comma combined with a coordinating conjunction (such as 'and').
This step eliminates grammatically incorrect options that lead to run-on sentences or comma splices.
3
Analyze the logical relationship between the two clauses to select the correct transition.
The first clause explains the trees' sensitivity to climate, and the second clause states the result (their rings providing a record). This is a cause-and-effect relationship, so 'consequently' is correct, whereas the contrast coordinator 'but' is logically incorrect.
This ensures the chosen option satisfies both grammatical and semantic constraints.

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Clause Boundaries and Linking
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Clause Boundaries and Linking

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