Why Does a Planet's Size Matter When Predicting If It

question 49

Multiple Choice

Why does a planet's size matter when predicting if it can support life?

• A) Gravity will determine if a planet can retain an atmosphere.
• B) Large worlds are most likely to have life based on our own Solar System.
• C) Only very large worlds have atmospheres.
• D) Water only exists on very large planets.

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Definitions:

Civil Defense System

A civil defense system encompasses measures and responses designed to protect civilians and infrastructure from natural disasters, military attacks, or other emergencies.

Public Good

Goods or services available to all in society without charge, delivered by the government or private organizations, without the intention of making a profit.

Rival Consumption

A situation where the consumption of a good by one individual prevents simultaneous consumption by other individuals.

Excludable

A characteristic of a good or service where it's possible to prevent individuals who have not paid for it from having access.