Areference to a person, place, or thing outside of the text is a(n)

Allusion

Explanation:

Allusion is a brief and indirect reference to a person, place, thing or idea of historical, cultural, literary or political significance.

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images of intense weather events

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.