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:

Price Elasticity of Demand

A study of how price developments influence the demand proportions for a commodity.

Income Elasticity of Demand

An indicator of the variation in demand for a product or service resulting from alterations in buyers' income levels.

Perfectly Inelastic

A situation in demand where the quantity demanded does not change in response to a change in price.

Insulin

A hormone produced by the pancreas that regulates blood glucose levels by facilitating the uptake of glucose into tissues, used medically to treat diabetes.