Which Event Marks the Beginning of a Supernova

question 113

Multiple Choice

Which event marks the beginning of a supernova?

• A)the sudden collapse of an iron core into a compact ball of neutrons
• B)the onset of helium burning after a helium flash in a star with mass comparable to that of the Sun
• C)the beginning of neon burning in an extremely massive star
• D)the sudden outpouring of X- rays from a newly formed accretion disk
• E)the expansion of a low- mass star into a red giant

---

Definitions:

Hormone

A chemical substance secreted by an organ or gland.

Needlesticks

Unintentional injury that occurs in the course of handling injection materials used for medication administration.

Unintentional Injury

An injury that occurs without the intent to harm, typically resulting from accidents or mishaps.

Injection Materials

Tools and substances used in the administration of drugs or fluids into the body via needles.