Question

decide whether each underlined word is an adjective or an adverb. 10 | adjective | adverb some cultures believe that what youre doing when the clock strikes midnight is crucial because it will affect your luck, wealth, life, and love for the rest of the year. better not take any chances and quickly adopt one of these new year good luck traditions.

Explanation:

First Sentence (Word: crucial)

"Crucial" describes the subject "what you're doing...", functioning as a subject complement (after the linking verb "is"). Adjectives describe nouns/pronouns or act as subject complements. So "crucial" is an adjective.

Second Sentence (Word: quickly)

"Quickly" modifies the verb "adopt", telling how the action is done. Adverbs modify verbs, adjectives, or other adverbs. So "quickly" is an adverb.

Answer:

For the first sentence (word: crucial): Adjective (mark in the "Adjective" column).
For the second sentence (word: quickly): Adverb (mark in the "Adverb" column).