When the Sun Entered the Main Sequence,its Core Was Approximately

question 279

Multiple Choice

When the Sun entered the main sequence,its core was approximately 75% hydrogen and 25% helium,by mass.What was the ratio of hydrogen nuclei to helium nuclei?

• A) 3:1
• B) 4:1
• C) 12:1
• D) 16:1

---

Definitions:

Hindu

Relating to Hinduism, a major world religion originating on the Indian subcontinent, characterized by a diverse range of beliefs, practices, and cultural traditions.

Elisabeth Kübler-Ross

A psychiatrist known for her pioneering work on death and dying, notably for introducing the five stages of grief model.

Denial

A psychological defense mechanism where a person refuses to accept reality or truth, often to protect themselves from a painful or difficult situation.

Rare Form

denotes a condition, situation, or manifestation that is infrequently encountered, uncommon, or unique in its characteristics.