Final answer:
The word 'quart' is a noun that represents a measure or unit of dry oats.
Step-by-step explanation:
The italicized word 'quart' in the sentence 'Please take a quart of these dry oats' is a noun. A noun is a word that represents a person, place, thing, or idea. In this sentence, 'quart' represents a measure or unit of dry oats.
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