Answer: All of them are adverb phrases.
An adverb phrase is a group of sentences that function as an adverb in a sentence. In other words, they modify a verb, adjective or another adverb. They typically answer the questions how, where, why or when. An adjective phrase, on the other hand, is a group of words that modify a noun.
In the first question, "inside the cardboard box" describes where it crept. It modifies the verb (crept) by answering "where?"
In the second question, "between the two children describes how it is divided. It modifies the verb (divide) by answering "how?"
In the third question, "above the treetops" describes where he looked. It modifies the verb (looked) by answering "where?"
