When the Core of a Star Reaches a Temperature of About

question 9

Multiple Choice

When the core of a star reaches a temperature of about 100 million degrees (K) , something new happens in the core. What is this new event?

• A) hydrogen nuclei begin to fuse into heavy hydrogen (deuterium) and then into helium
• B) two helium nuclei begin fusing of beryllium (element number 4)
• C) the core explodes
• D) three helium nuclei begin fusing carbon (element number 6)
• E) the fusion of iron (element 26)

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Definitions:

Central

Pertaining to the most important or core part of something, often referring to the main or primary focus or system within a larger context.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for action, stress, or emergency situations by activating the fight or flight response.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, often measured for health diagnostics.

Blood Sugar

The concentration of glucose in the bloodstream, critical for energy supply to cells and regulated by hormones like insulin.