What Process Heated the Early Solar Nebula as It Slowly

question 19

Multiple Choice

What process heated the early solar nebula as it slowly condensed toward a central protosun?

• A) radioactive decay of heavy elements originally formed in the Big Bang
• B) release of heat as molecules formed and gases condensed into ices
• C) thermonuclear fusion in the protosun, followed by radiative heating of the nebula
• D) generation of heat by collisions of particles as they gained kinetic energy in falling toward the center of the nebula

---

Definitions:

Work-Related Accidents

Incidents that occur in the course of employment, leading to physical or mental injury.

Scanlon Plan

A type of gain-sharing program that rewards employees for contributions to productivity improvements through cost savings, emphasizing teamwork and participation.

Future Cost

Predicted financial expenditure associated with an action or decision, considering potential increases in prices or changes in resource availability.

Labour

The human effort, whether physical or mental, that is applied to the production of goods and services.