Which Fact Referring to Stars in a Cluster Is NOT

question 136

Multiple Choice

Which fact referring to stars in a cluster is NOT particularly useful for interpreting the evolution of these stars?

• A) The stars are all at the same distance from Earth, so we measure true intrinsic brightnesses of the stars.
• B) The stars all formed at about the same time.
• C) The stars formed from the same mix of chemical elements but with a mix of original masses.
• D) The majority of the material in these stars is hydrogen.

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Definitions:

Right Atrium

The upper right section of the heart, responsible for taking in blood lacking oxygen from the body and moving it to the right lower chamber.

Left Ventricle

The chamber of the heart that pumps oxygenated blood through the aorta to the rest of the body.

Pulmonary Trunk

A major blood vessel that carries blood from the right ventricle of the heart to the lungs for oxygenation.

Superior Vena Cava

A large vein carrying deoxygenated blood from the upper half of the body to the heart's right atrium.