Which of the Following Is NOT Evidence of the Existence

question 7

Multiple Choice

Which of the following is NOT evidence of the existence of an interstellar medium?

• A)extinction of light from distant stars
• B)very narrow calcium absorption lines in the spectra of O and B stars
• C)reddening of more distant stars
• D)molecular absorption lines in the spectra of cool stars

---

Definitions:

Frustration

A feeling of irritation or annoyance due to the inability to achieve a goal, satisfy a need, or resolve a problem.

Self-Confident

Having trust in one's own abilities, qualities, and judgment.

Outpatient Therapy

A form of therapeutic treatment where patients receive care or attend therapy sessions without being admitted to a hospital overnight.

Commit Suicide

Committing suicide involves intentionally causing one's own death, often as a result of distress, mental health conditions, or difficult life circumstances.