It Is Unlikely That Intelligent Life Would Develop on a Planet

question 20

Multiple Choice

It is unlikely that intelligent life would develop on a planet circling a star of significantly less mass than the Sun because

• A) no moon would form around a planet near such a star, and the Moon is considered to have been essential for the evolution of life because of tidal variations on Earth.
• B) the lifetime of such a star on the main sequence is too short; life-forms on such a planet would not have time to evolve intelligence.
• C) the planet would probably become tidally locked to the star, making one side of the planet too hot and the other side too cold.
• D) there would be no region around the star where UV, visible, and IR light intensities would be suitable for the evolution of life.

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Definitions:

External Cause Code

A coding system used in healthcare to classify external causes of injuries, poisonings, and other adverse effects.

Poisoned

A condition produced by a substance that harms or causes death.

Sequela

An ailment resulting from a prior illness or injury.

Co-morbidity

The presence of one or more additional diseases or disorders co-occurring with a primary disease or disorder.