Which Planet Has the Fastest Rate of Motion, and the Shortest

question 66

Multiple Choice

Which planet has the fastest rate of motion, and the shortest year?

• A)Mercury
• B)Venus
• C)Earth
• D)Mars

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Definitions:

Accommodation

The ability of the eye to change its focus from distant to near objects, involving the lens changing shape.

Constricts

To narrow or become tighter, often referring to the narrowing of blood vessels or other tubular structures.

Accommodation Reflex

The process by which the eye changes optical power to maintain a clear image or focus on an object as its distance varies.

Photopupillary Reflex

The reflex constriction of the pupils when the eyes are exposed to bright light.