The Spiral Arms Are Blue from the Presence of Population

question 64

Short Answer

The spiral arms are blue from the presence of Population _ stars in them.

---

Definitions:

Marginal Benefit

The further satisfaction or value an individual gains from consuming an extra unit of a certain product or service.

Optimal Quantity

The amount of a good or service that achieves the best balance between cost and benefit.

Sunk Cost

Expenses that have already been incurred and cannot be recovered, which should not influence current or future business decisions.

Save a Life

Save a Life refers to actions or interventions taken to prevent someone from dying.