Galaxies Seem to Be Made Mostly of Dark Matter

question 27

Multiple Choice

Galaxies seem to be made mostly of dark matter. One type of evidence for this comes from observations of

• A) the redshift in the light from the explosions of distant supernovas.
• B) the redshift in the light from the earliest galaxies in the universe.
• C) Both of the above.
• D) the speeds at which gas clouds orbit the centers of galaxies.
• E) distant quasars.

---

Definitions:

Metabolic Change

Alterations in the chemical processes within the body that are necessary for maintaining life, often resulting from disease, diet, or lifestyle.

Glycogen

A form of glucose storage in the liver and muscles, which can be broken down to provide energy when needed.

Work Responsibilities

The specific tasks or duties that are part of a job role, which an employee is expected to perform as part of their employment.

Set Boundaries

Establishing limits or guidelines in relationships or activities to maintain health and well-being.