How Did Edwin Hubble Measure the Distance to the Andromeda

question 17

Multiple Choice

How did Edwin Hubble measure the distance to the Andromeda Galaxy?

• A)He measured its parallax.
• B)He applied the period-luminosity relation to Cepheid variables.
• C)He deduced it from its redshift.
• D)He used white dwarf supernovae.

---

Definitions:

Personality Disorder

A type of mental disorder characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, exhibited across many contexts and deviating from those accepted by the individual's culture.

Borderline Personality Disorder

A mental health disorder characterized by unstable moods, behavior, and relationships, often stemming from a fear of abandonment.

Administer Medication

The process of giving medication to a patient in accordance with a prescription.

Antisocial Personality Disorder

A mental health disorder characterized by a long-term pattern of manipulating, exploiting, or violating the rights of others.