In a Hubble Space Telescope Search for Evidence of Supermassive

question 384

Multiple Choice

In a Hubble Space Telescope search for evidence of supermassive black holes in about 30 nearby galaxies,evidence was found that:

• A) only one galaxy, the Milky Way Galaxy, contains a supermassive black hole.
• B) no galaxies in the vicinity of Earth contain a supermassive black hole at their centers.
• C) almost all galaxies contain supermassive black holes.
• D) only spiral galaxies contain supermassive black holes.

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Definitions:

Wake up

The act of emerging from sleep to a state of consciousness.

Feel rested

The sensation of having regained energy and alertness after resting or sleeping, often associated with physical and mental well-being.

Obstructive sleep apnea

A disorder where breathing repeatedly stops and starts during sleep due to throat muscles intermittently relaxing and blocking the airway.

Continuous positive airway pressure

A treatment that uses mild air pressure to keep the airways open, commonly used for patients with breathing problems, such as sleep apnea.