Answer:
Quasars inhabit the centers of active galaxies and are among the most luminous, powerful, and energetic objects known in the universe, emitting up to a thousand times the energy output of the Milky Way, which contains 200–400 billion stars.
Explanation:
sorry if im wrong
Answer:
d 2,4,3
Explanation:
2 Al2O3 ----> 4 Al + 3 O2
As the crust moves away from the ridges, it cools and becomes more dense, therefore causing it to sink! i hope this helps!
