If You Observed That at the Centers of Some Galaxies

question 2

Multiple Choice

If you observed that at the centers of some galaxies there were objects emitting lots of X-rays or there was gas in rapid motion, you might conclude that these galaxies:

• A) are very old
• B) contain many white dwarfs
• C) have different physics than on the Earth
• D) are rotating quickly
• E) contain black holes

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Definitions:

Hemisphere Superiority

The dominance of one hemisphere of the brain in controlling specific functions and processes, such as language or spatial recognition.

Musical Melodies

Successions of musical notes that are perceived as a single coherent structure.

Recognizing Words

Refers to the process of identifying and understanding the words in spoken or written language.

Natural Selection

A process in evolutionary biology where organisms with traits better suited to their environment are more likely to survive and reproduce, influencing the traits of future generations.