Final answer:
The adjectives in the sentence are 'Monarch' which specifies the type of butterflies, and 'winter' which indicates the season of migration. The sentence provides details on the migratory behavior of Monarch butterflies and how these words add clarity to their action.
Step-by-step explanation:
The adjectives in the sentence 'Monarch butterflies migrate before winter' are Monarch and winter. 'Monarch' describes which type of butterflies, distinguishing them from other butterfly species. 'Winter' is used as an adjective to describe the time or season during which the migration takes place. These adjectives help to specify details and add clarity to the sentence.
Monarch butterflies are known for their extensive migratory pattern, which is an amazing natural phenomenon where they travel thousands of miles, an adaptation for finding food, mating, and escaping cold temperatures.