In this sentence, "uneven" is meant to modify the verb "baked." Therefore, an adverb is needed. However, "uneven" is an adjective. The adverbial form is "unevenly," so the correct sentence would read, "Because the oven did not heat properly, Megan's cupcakes baked unevenly; some were burnt and overdone, while others were still raw and runny." Remember that adjectives only modify nouns, and adverbs modify verbs, adjectives, or other adverbs.

In this sentence, the adjective “slow” is used to modify the verb “crept.” Adjectives should only modify nouns and pronouns, so to correct the sentence's error, the adjective "slow" should be replaced with the adverb “slowly." The corrected sentence reads, "The sloth crept slowly across the roadway, risking life and limb in his determination to explore the world on the other side."

In this sentence, the adjective “quick” describes the verb “remove.” An adverb would be more appropriate. The corrected sentence reads: Chad’s political views took an abrupt swing to the left, and he had to find a way to remove bumper stickers quickly.

the words "careful and slow" are describing the verb "carried," and so should be adverbs instead of adjectives. The correction would be "carefully and slowly."

In this sentence, the adjective “similar” modifies the verb “dressing.” As adjectives can only modify nouns and pronouns, an adverb should be used instead. The corrected sentence reads, "I could never distinguish between the two Johnson twins, and their mother did not help matters by dressing them similarly."

In this sentence, the first "good" (in "Playing a brass or woodwind instrument good") is incorrect; "good" is an adjective, and this "good" is used to describe the way in which one plays a brass or woodwind instrument, so it needs to be changed to "well," which is an adverb, because adjectives cannot describe verbs, but adverbs can.

Adverbs modify verbs (or sometimes adjectives). "Gentle" modifies "said"—he said the phrase in a gentle manner. Adverbs tend to tend in "-ly," but don't be fooled by the adjective "melancholy" here, which modifies "spirits" (a noun) and is therefore an adjective!

The sentence would be fixed by replacing "gentle" with "gently."

"Quick" modifies the verb, "ran." However, "quick" is an adjective and therefore is incorrectly used, becuase adjectives aren't used to describe verbs. Adverbs are used to describe verbs, so to correct the sentence's error, "quick" should be changed to the adverb "quickly."

The error in this sentence is "less" because "health problems" are countable nouns—you can count the number of health problems a person has. When referring to countable nouns, you should use "fewer" instead of "less." The beginning of this sentence, then, should read, "People who experience fewer health problems."

When describing physical distance, the adjective "farther" should be used. However, when describing figurative distance, the adjective "further" should be used. Given that the distance of a house from another house is being described—that is, a physical distance—the adjective "farther" should be used, not "further."