Which of the following sentence is correct?

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Choose the correct option to replace the quotation part of each sentence. Often visible as smog, 'ozone is formed in the atmosphere from' hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.

Find incorrect word phrase from the following sentence:
Visitors were not permitted entering the perk after the because of a lack of security and lighting.

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