B. An oceanic plate sinks beneath another oceanic plate at a convergent boundary
It would be D because it describes the age of the sea floor
22 languages which include Assamese, Bodo, Hindi, Kannada and Kashmiri
Answer:
<h3>Migration can be defined as “a process of moving, either across an interna- tional border, or within a State. ... The phenomenon of migration has been indispensable to human histories, cultures, and civilizations</h3>