How Do We Know That Halo Stars Are Older,on Average,than

question 74

Multiple Choice

How do we know that halo stars are older,on average,than disk stars?

• A)Halo stars orbit in random directions but disk stars have more ordered orbits.
• B)There are no blue halo stars.
• C)There are no red disk stars.
• D)Theories of galaxy formation tell us that the halo formed earlier than the disk.
• E)We see evidence for new stars forming in the disk today.

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Definitions:

Directive

An instruction or order given by someone in authority, guiding actions or strategies in various contexts.

Supervisor

A role within organizations responsible for overseeing the performance and activities of employees, usually within a specific department or area.

Clarity And Control

Refers to the clear understanding and management of tasks, roles, and expectations within an organization or project to ensure efficiency and achievement of objectives.

Directive Style

A leadership approach characterized by giving clear, explicit instructions and closely supervising tasks, with a focus on task achievement and compliance.