The Major Reason for Differences in Temperature and Luminosities Among

question 45

Multiple Choice

The major reason for differences in temperature and luminosities among main-sequence stars is that some:

• A) have a higher ratio of hydrogen to helium.
• B) are younger than others.
• C) are more massive than others.
• D) are older than others.

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Adolescent Development

The physical, emotional, psychological, and social changes that occur during the transition from childhood to adulthood.

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Individuals who are equal in status or age, often used in the context of social relationships among people with common interests or backgrounds.

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