Which of the Following Correctly Describes How the Process of Gravitational

question 9

Multiple Choice

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

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

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