The Structure of Callisto, the Outer Galilean Satellite of Jupiter

question 14

Multiple Choice

The structure of Callisto, the outer Galilean satellite of Jupiter, is thought to be

• A) a mixed ice-rock interior surrounded by a liquid ocean and then a solid icy crust.
• B) mostly or entirely rock, with no firm evidence of an iron core, and active volcanoes on its surface.
• C) an iron core surrounded by a rocky mantle and an ice mantle and crust.
• D) almost all water ice, in view of its low average density.

---

Definitions:

Callous Attitude

Showing a lack of empathy or concern for others, often characterized by insensitivity or indifference to others' feelings.

Reclusive Behavior

The tendency to seek isolation and avoid social interaction, often seen in individuals who experience high levels of stress or those who have mental health conditions.

Aggression

Aggression is defined as behaviors or attitudes that are hostile, confrontational, or violent towards others.

Active Voice

A sentence structure where the subject performs the action expressed by the verb.