The Region on the H-R Diagram Where Pulsating Variables Occur

question 89

Multiple Choice

The region on the H-R diagram where pulsating variables occur is called the:

• A)period-luminosity relation.
• B)mass-luminosity relation.
• C)instability strip.
• D)horizontal branch.
• E)main sequence appendix.

---

Definitions:

Vested Benefits

Benefits that an employee has earned the right to receive, even if they no longer work for the employer, typically in a pension or retirement plan.

Postretirement Health Care Benefits

Benefits provided by an employer to retired employees, covering medical and health-related expenses.

Tax Deductible

Expenses or costs that can be subtracted from gross income to reduce the taxable income.