The Traditional "Top-Down" Hypothesis of the Formation of Our Galaxy

question 77

Multiple Choice

The traditional "top-down" hypothesis of the formation of our galaxy cannot explain

• A)why not all globular clusters are the same age.
• B)why the youngest globular clusters are in the outer halo.
• C)why the oldest stars are metal poor but not completely metal free.
• D)streams and rings of scattered stars in the halo.
• E)All of the other choices are correct.

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Definitions:

Clavicle

A long bone that serves as a strut between the shoulder blade and the sternum or breastbone, commonly known as the collarbone.

Scapula

The Scapula, commonly known as the shoulder blade, is a flat, triangular bone located on the back of the shoulder, connecting the humerus with the clavicle.

Sternum

A long flat bone located in the center of the chest, connected to the ribs via cartilage and forming part of the rib cage.

Humerus

A long bone in the upper arm that runs from the shoulder to the elbow, connecting with various muscles and joints.