You Observed Three Different Star Clusters and Found That the Main-Sequence

question 62

Multiple Choice

You observed three different star clusters and found that the main-sequence turnoff stars in Cluster 1 had spectral type F, the main-sequence turnoff stars in Cluster 2 had spectral type A, and the main-sequence turnoff stars in Cluster 3 had spectral type G. Which star cluster is the youngest and which one is the oldest?

• A) Cluster 1 is the youngest and cluster 2 is the oldest.
• B) Cluster 2 is the youngest and cluster 1 is the oldest.
• C) Cluster 2 is the youngest and cluster 3 is the oldest.
• D) Cluster 3 is the youngest and cluster 1 is the oldest.
• E) Cluster 3 is the youngest and cluster 2 is the oldest.

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Definitions:

Hunter-Gatherer Cultures

Societies that rely on hunting wild animals and gathering uncultivated plants for sustenance.

Cognitive Domains

Specific areas of mental functioning, related to abilities such as memory, attention, language, and problem-solving.

Abstract Reasoning

The cognitive ability to understand and manipulate complex concepts not directly related to physical or concrete experiences.

Cultural Diffusion

The process through which cultural elements are borrowed from one society and incorporated into another, spreading ideas, beliefs, and innovations.