Stars That Do Not Have What It Takes to Succeed

question 28

Multiple Choice

Stars that do not have what it takes to succeed as a star (i.e. do not have enough mass to fuse hydrogen into helium at their centers) are called:

• A) extras
• B) red giants
• C) spectroscopic stars
• D) brown dwarfs
• E) main sequence stars

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Definitions:

Efficient Price

The price at which the quantity of goods supplied is equal to the quantity of goods demanded, leading to an optimal allocation of resources.

Nonrival

A characteristic of a good or service that implies one person's consumption does not reduce its availability to others.

Public Good

A good that is non-excludable and non-rival in consumption, meaning no one can be prevented from using it and one person's use does not reduce availability to others.

Marginal Social Benefit

The additional benefit to society from producing one more unit of a good or service.