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Zorluk: OrtaPunctuation of Nonessential Elements

The passage below contains a nonessential clause set off by punctuation. What punctuation mark should be typed in the blank to correctly complete the sentence?

Cevap:In 19081908, German chemist Fritz Haber developed a method to synthesize ammonia directly from atmospheric nitrogen. This chemical process—which later won Haber the Nobel Prize in Chemistry【—】enabled the mass production of synthetic fertilizers, ultimately sustaining global food supplies.

Cevap

An em dash (— or --) is required in the blank to match the em dash that introduces the nonessential clause.
The nonessential relative clause 'which later won Haber the Nobel Prize in Chemistry' is introduced by an em dash. To maintain grammatical symmetry, the clause must also end with an em dash. Therefore, an em dash (—) is the correct punctuation mark.

Adım Adım Çözüm

1
Identify the nonessential element in the sentence.
The phrase 'which later won Haber the Nobel Prize in Chemistry' is a nonessential relative clause because removing it does not change the core meaning of the sentence.
Nonessential elements must be set off from the rest of the sentence with matching punctuation marks.
2
Identify the punctuation mark that begins the nonessential clause.
The clause is introduced by an em dash ('—').
To maintain punctuation symmetry, the nonessential clause must end with the same type of punctuation mark that started it.
3
Determine the correct punctuation mark for the blank.
The blank must be filled with an em dash ('—') to match the opening em dash.
Mixing different punctuation marks (such as starting with an em dash and ending with a comma or parenthesis) is grammatically incorrect.

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Punctuation of Nonessential Elements
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Punctuation of Nonessential Elements

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