What is the adverb in following sentence Settlers built their homes there with thick walls?

The adverb in the sentence "Settlers built their homes there with thick walls" is there.

Here's why:

* Adverbs modify verbs, adjectives, or other adverbs. In this sentence, "there" modifies the verb "built" by telling us where they built their homes.

* Adverbs often answer questions like "where," "when," "how," or "to what extent." In this case, "there" answers the question "where?"