Which of the Following Is Evidence for Supermassive Black Holes

question 29

Multiple Choice

Which of the following is evidence for supermassive black holes in active galaxies?

• A)rapid changes in the luminosity of the galaxy nucleus
• B)quasars emitting approximately equal power at all wavelengths from infrared to gamma rays
• C)the very high speeds of gas orbiting around the galactic nucleus
• D)the discovery of powerful jets coming from a compact core
• E)all of the above

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Definitions:

Subtropics

Regions of the Earth located immediately north and south of the tropics, characterized by hot summers, mild winters, and relatively high humidity.

Arid Lands

Regions characterized by extremely dry conditions, insufficient rainfall, and limited water resources, supporting sparse vegetation.

Greenhouse

Refers to the trapping of the sun's warmth in a planet's lower atmosphere due to the presence of greenhouse gases, leading to an increase in temperature.

Atmospheric

Related to or occurring within the Earth's atmosphere, involving aspects like weather, climate, and air quality.