An H-R Diagram for a Globular Cluster Will Show a Horizontal

question 101

Multiple Choice

An H-R diagram for a globular cluster will show a horizontal branch-a line of stars above the main-sequence but to the left of the subgiants and red giants.Which of the following statements about these horizontal branch stars is true?

• A)They have inert (non-burning)carbon cores.
• B)Their sole source of energy is hydrogen shell burning.
• C)They generate energy through both hydrogen fusion and helium fusion.
• D)In a particular star cluster,all horizontal branch stars have the same spectral type.

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Definitions:

Vertical Merger

Merger that combines firms operating at different levels in the production and marketing process.

Joint Venture

A business arrangement in which two or more parties agree to pool their resources for the purpose of accomplishing a specific task, project, or other business activity.

Conglomerate Company

A Conglomerate Company is a large corporation composed of several companies with diverse or unrelated business interests.

Horizontal Merger

The combination of two or more firms operating in the same industry and at the same stage of production.