The Number of Technological Civilizations in Our Galaxy Is Limited

question 33

Multiple Choice

The number of technological civilizations in our galaxy is limited by

• A) the number of stars in our galaxy
• B) the fraction of stars with planets
• C) the number of planets per star in habitable zone longer than a few billion years
• D) the fraction of suitable planet where technical life forms evolve.
• E) All of the above.

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Definitions:

Analytical Intelligence

One aspect of intelligence that involves the ability to analyze, evaluate, judge, compare, and contrast.

Practical Intelligence

An aspect of intelligence related to the application of knowledge and skills in solving everyday problems and achieving goals.

Cultural Differences

Variations in the practices, customs, and social norms among different societies and ethnic groups.

IQ

Short for Intelligence Quotient, a measure of a person's cognitive abilities in relation to their age group.