Accepted Answer
It implies that Active galactic nuclei tend to become less active as they age.Active galactic nuclei too commonly alluded to as AGN, are presently caught on to be active supermassive dark gaps at the center of systems that are transmitting planes and winds. Telescopes in space and on the ground identify these outflows of gas and tidy as light all along the electromagnetic spectrum–from X-rays and obvious light to infrared light and radio waves. In differentiate, inert or calm dark gaps don't emanate light and stay undetected. The formal term active galactic nuclei, which is less than catchy, applies to a few extra classifications that do snatch consideration, counting quasars moreover known as radio universes and blazars, and Seyfert universes. The differences between these groups start with their distances from Earth.To know more about Active galactic nuclei refer to the link https://brainly.com/question/28095258?referrer=searchResults.#SPJ4