According to paragraph 1, what primarily powers a quasar?

Understand the Problem

The question is asking what primarily powers a quasar, based on the provided paragraph about quasars. It requires identifying the correct option among the provided choices.

More Information

Quasars are powered by the accretion of material onto supermassive black holes located at the centers of galaxies. As matter spirals in, it releases a significant amount of energy, making quasars some of the most luminous objects in the universe.

Tips

Remember that quasars are not powered by stars themselves but by the gravitational energy from material moving into a supermassive black hole.

Sources

• Quasar - Wikipedia - en.wikipedia.org
• The Power Source of Quasars - SkyServer - skyserver.sdss.org
• What is a quasar? - EarthSky - earthsky.org