Some Dark Matter May Be Ordinary Matter That Orbits in the Halo

question 58

Multiple Choice

Some dark matter may be ordinary matter that orbits in the halo of the galaxy. Which of the following would not be considered a type of ordinary dark matter?

• A) Globular clusters in the halo of the galaxy
• B) Brown dwarfs in the halo of the galaxy
• C) Planets in the halo of the galaxy
• D) You, if you happened to be floating in the halo of the galaxy

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Definitions:

Behavior

The range of actions and mannerisms made by individuals, groups, or systems, in conjunction with themselves or their environment, which includes the other systems or organisms around as well as the physical environment.

Applied Science

The use of scientific knowledge and principles to solve practical problems, often leading to innovations in technology, medicine, and other fields.

Engineering

The applied science of energy and matter.

Energy

A physical quantity that represents the ability to perform work, which can exist in various forms such as mechanical, thermal, chemical, electrical, and nuclear.