What Change Slowly Occurs During the Main- Sequence Lifetime of a Star

question 107

Multiple Choice

What change slowly occurs during the main- sequence lifetime of a star?

• A)Its core temperature slowly increases, increasing the fusion rate and hence the luminosity.
• B)As hydrogen is used up in the core, the fusion rate decreases and reduces the luminosity.
• C)It gathers more gas from interstellar space, increasing its mass and hence the luminosity.
• D)As the solar wind blows material into space, the decreasing mass reduces pressure in the core, which in turn reduces the fusion rate and the luminosity.

Acknowledge the use of formal education programs in employee development.

Distinguish between training and development and their respective purposes.

Recognize the importance of action planning in career development.

Understand the concepts of a protean career and its implications for personal growth.

---

Definitions:

Productivity

An indicator of how effectively a person, machine, factory, system, etc., transforms inputs into valuable outputs.

Morale

The overall mood, attitude, and satisfaction of a group or workforce, often reflecting their overall job happiness and productivity.

Knowledge Management

The process of capturing, distributing, and effectively using knowledge.

Knowledge Retention

The process by which organizations preserve critical information and skills within their workforce, despite changes or turnover.