The nation of Brazil actually covers almost half of the continent if south america.

Which is the adverb and what does it modifies?

Adverbs describe verbs, adjectives, and other adverbs. They also tell when, where, why, how., to what extent.

Many adverbs end in -ly.

What do you think the adverb is?

What does it modify?

Covers-adverb

The adverb in the given sentence is "almost." It modifies the adjective "half."

To identify the adverb in a sentence, you can follow these steps:

1. Identify words that describe verbs, adjectives, or other adverbs.
2. Ask questions like "how," "when," "where," "to what extent," or "under what conditions" to determine the role of the word.
3. If the word provides additional information about how, when, where, or to what extent something happened, it is likely an adverb.

In this case, the word "almost" describes the extent to which Brazil covers the continent of South America. It tells us that Brazil covers "almost half" of the continent, providing additional information about the size or amount. Thus, "almost" is the adverb in this sentence, modifying the adjective "half."