Which Of The Following Best Explains The Age Of Oceanic Crust And Ocean-Floor Features?. As new seafloor moves away from an ocean ridge, the seafloor cools and becomes less dense than the material beneath it. The theory of plate tectonics.

Study with quizlet and memorize flashcards containing terms like the youngest rocks on the ocean floor are located at what, which of the following best explains the age of oceanic crust. Thus, the correct answer is a. As new seafloor moves away from an ocean ridge, the seafloor cools and becomes less dense than the material beneath it.