What Was the Reason for Using Epicycles and Deferents to Explain

question 18

Multiple Choice

What was the reason for using epicycles and deferents to explain the motion of the planets in the night sky?

• A)prograde motion
• B)Mercury and Venus's limited angular distance from the Sun
• C)retrograde motion
• D)non-uniform speed of the planets in their orbits

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Definitions:

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The condition in which all inputs and outputs in an economy or a market are fully adjusted and there are no external pressures for change.

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Selling Price

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The discrepancy between what a business earns in total revenue versus the sum of its explicit and implicit expenditures.