QUESTION: Fix punctuation: Tip Incorrect YZ1 file association errors can be a symptom of other underlying issues within your Windows operating system
ANS: Tip: Incorrect YZ1 file association errors can be a symptom of other underlying issues within your Windows operating system.
QUES: c Residential combustion sources

correct the punctuation.

CORRECTED: c) Residential combustion sources;
Question: It was created shortly before the 1992 Barcelona Olympic Games taking advantage of the coastal urban redevelopment carried out for the occasion
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Answer: It was created shortly before the 1992 Barcelona Olympic Games, taking advantage of the coastal urban redevelopment carried out for the occasion.
All St Andrews apartments stylishly furnished and decorated with warm colours

Can you repeat this sentence, but add in punctuation?
All St. Andrew's apartments stylishly furnished and decorated with warm colours.
input: These events became individual observations in the analysis
fixed: These events became individual observations in the analysis.
Would you like to use this thumbnail photography with the maximum size of 600x424 pixels on your websites and online projects for free of charge You can do so without any worry and completely legally

Can you repeat this sentence, but add in punctuation?
Would you like to use this thumbnail photography with the maximum size of 600x424 pixels on your websites and online projects for free of charge? You can do so without any worry and completely legally.