Answer:
- Chicago
- fairs.
The 1893 World's Columbian Exposition in Chicago — the one many people credit for sparking America's interest in fairs — showcased many great innovations in fine arts and technology.
Step-by-step explanation:
'Dashes' are characterized as the punctuation marks with the symbol — that are employed to separate either a word or phrase followed by an independent clause. These are primarily used to reflect a comment or afterthought which is why dash helps in giving a pause from the main idea and highlight the afterthought.
In the given passage, the dashes would be placed after the words 'Chicago' and 'fairs' as these phrases occur immediately post an independent clause and thus, require a pause for emphasis or for displaying the sudden change in the thought. This assists in conveying the meaning of the clause and afterthought more clearly and effectively.