Respuesta :
The prefix "sub" means below, beneath, under. So it's under the ocean.
Answer:
under the ocean
Explanation:
The word “Sub” is a prefix, that is, an affix added before a root word and which adds meaning to the word, and it means “under” “beneath” and “below.” Thus, “submarine” means “under the ocean” and it refers to a boat that operates under the ocean or underwater. Other examples of words using this prefix are subcontractor, substitute and substratum.