The adverb in the sentence "After all, a hearing problem isn't as easily corrected as a skinned knee." is "easily." Here's why:
1. Adverbs are words that modify verbs, adjectives, or other adverbs by providing more information about how an action is done. In this sentence, the word "easily" describes how the hearing problem is corrected.
2. To identify an adverb, you can ask yourself "how," "when," "where," or "to what extent" to the word in question. In this case, asking "how is the hearing problem corrected?" leads us to the answer "easily."
3. In the sentence, "easily" modifies the verb "corrected," indicating the ease or difficulty of correcting a hearing problem compared to a skinned knee.
Therefore, the adverb in the sentence is "easily," as it provides more information about how the hearing problem is corrected.