Step-by-step explanation:
beneath is preposition
for your information
We use beneath most commonly to describe the position of things which are at a lower level than something else: Archaeologists discovered a gold cup just beneath the surface at the site of a Roman villa
preposition
A preposition is a word used to link nouns, pronouns, or phrases to other words within a sentence. They act to connect the people, objects, time and locations of a sentence. Prepositions are usually short words, and they are normally placed directly in front of nouns.