Question

Which sequence best describes the process by which matter in the Universe is recycled?

A) Supernova explosion → expanding remnant → cloud collapse → new stars → supernova explosion.
B) Big bang → formation of galaxies → cloud collapse → new stars → big bang.
C) Big bang → cloud collapse → formation of galaxies → new stars → big bang.
D) Supernova explosion → expanding remnant → formation of planets → nebular explosion → supernova explosion.
E) Big bang → expanding remnant → cloud collapse → new stars → big bang.

Answer 1

The recycling of matter in the Universe follows a cycle of supernova explosion, expanding remnants, cloud collapse, and the birth of new stars, which eventually become supernovae themselves.

Step-by-step explanation:

The sequence that best describes the process by which matter in the Universe is recycled is A) Supernova explosion → expanding remnant → cloud collapse → new stars → supernova explosion. During this cycle, interstellar matter is constantly in motion, with materials being ejected into space when stars, particularly massive ones, reach the end of their lifespans and explode as supernovae. This process distributes elements throughout the galaxy, contributing to the formation of new star systems and planets, effectively recycling cosmic material for the next generation of stellar objects.