Most Active Galactic Nuclei Are Found at Large Distances from Us

question 117

Multiple Choice

Most active galactic nuclei are found at large distances from us, with relatively few nearby. What does this imply?

• A) Active galactic nuclei tend to become less active as they age.
• B) Supermassive black holes existed only when the universe was young, and no longer exist today.
• C) Active galactic nuclei can form only at large distances from the Milky Way.
• D) The jets seen in many active galactic nuclei must cause them to move far away from us.

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