Question

Find the adverb phrase "is there water on the moon?"

Answer 1

 Here “on the moon” is the adverb phrase.

Adverb phrase can modify a verb or adjective, for example, you can use how,

where, why or when in a sentence to modify the verb. So adverb phrase can modify verbs, adverbs and adjectives, but adverb must include a subject and a verb.