Most Active Galactic Nuclei Are Powered By

question 39

Multiple Choice

Most active galactic nuclei are powered by:

• A)supermassive black holes.
• B)a large number of supernovae.
• C)mergers of compact objects.
• D)black hole mergers.
• E)extra-terrestrial civilizations.

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Definitions:

Acetic Acid

A colorless liquid organic compound with the chemical formula CH3COOH, commonly known as the main component of vinegar after water.

Lithium Enolate

A reactive species derived from the deprotonation of a carbonyl compound by lithium, used in organic synthesis.

Methyl Bromide

A colorless, odorless, nonflammable gas used as a fumigant and pesticide.

Isopropyl Bromide

A brominated hydrocarbon with the chemical formula C3H7Br, used in organic synthesis as an alkylating agent.