Retrograde Motion Was Important in the Development of Our Understanding

question 84

Multiple Choice

Retrograde motion was important in the development of our understanding of the solar system because:

• A) it was not discovered until 1920.
• B) it cannot be described with the geocentric model.
• C) its description in terms of the heliocentric model is a great simplification in comparison with its description in terms of the geocentric model.
• D) it happens only about once per century.

---

Definitions:

Aggressive Manner

A behavior characterized by assertiveness and possibly hostility or combativeness, often in pursuit of a goal.

Job Holder

An individual who occupies a specific position within an organization, performing defined roles and responsibilities.

Job Description

A list of the duties and responsibilities of a job holder.

Job Analysis

The process of studying and collecting information regarding the operations and responsibilities of a specific job.