Which of the Following Correctly Describes How the Process of Gravitational

question 58

Multiple Choice

Which of the following correctly describes how the process of gravitational contraction can make a star hot?

• A)Gravitational contraction involves nuclear fusion,which generates a lot of heat.
• B)When a star contracts in size,gravitational potential energy is converted to thermal energy.
• C)Heat is generated when gravity contracts,because gravity is an inverse square law force.
• D)Gravitational contraction involves the generation of heat by chemical reactions,much like the burning of coal.

---

Definitions:

Labor

The effort by human workers in producing goods or providing services, often considered in terms of workforce or employment.

Period Costs

Costs that are expensed in the period they're incurred, not directly tied to production activity, such as selling and administrative expenses.

Direct Materials

Raw materials that can be directly attributed to the production of specific goods or services in manufacturing.

Direct Labor

The wages and benefits paid to workers who are directly involved in the production of goods or services.