The Unified Model Describes Active Galactic Nuclei Using

question 139

Multiple Choice

The unified model describes active galactic nuclei using

• A)a supermassive black hole at the center of a normal spiral galaxy.
• B)a supermassive black hole surrounded by an accretion disk and dense disk of gas.
• C)an accretion disk around a neutron star.
• D)gravitational lenses to intensify the radiation coming from them.
• E)different lines of sight toward and dwarf irregular galaxy.

---

Definitions:

Conditional

Relating to a statement or proposition that expresses a condition, typically formulated as "if...then..."

Body Fat

The portion of the human body made up of fat tissues, which serves as a source of energy, insulation, and protection.

Air Temperature

The measure of the warmth or coldness of the air in the environment, typically recorded in degrees Celsius or Fahrenheit.

Vernix Caseosa

A waxy or cheese-like white substance found coating the skin of newborns that provides protection while in the womb.