Consider an External Solar System in Which There Are Three

question 20

Multiple Choice

Consider an external solar system in which there are three terrestrial planets. All are located far from other objects so tidal forces aren't significant. If planet A has a radius of 1 Earth radius, and planet B has a radius of 2 Earth radii, and planet C has a radius of 3 Earth radii, which planet has the highest chance of having at least a partially liquid core and a detectable magnetic field?

• A) Planet A
• B) Planet B
• C) Planet C
• D) They all have the same likelihood of having a liquid core.
• E) None of these planets should have a liquid core, because they all should have completely solidified.

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Definitions:

Proportion

A part, share, or number considered in comparative relation to a whole; the relationship of one thing to another in terms of quantity, size, or number.

Children

Young human beings below the age of puberty or below the legal age of majority, often considered in the context of familial and social development.

Fastest Growing Households

Households that are increasing in number or size at a rate faster than other types, often due to specific social, economic, or demographic trends.

Cohabitors

Individuals who live together in a romantic relationship without being legally married.