What Is a Reason That Infants Who Have Been Sleeping

question 144

Multiple Choice

What is a reason that infants who have been sleeping through the night start waking up again between when they are between 18 and 24 months old?

• A)They become more aware that they are sleeping by themselves.
• B)They have more nightmares.
• C)They watch too much television.
• D)They drink too many liquids before bedtime.

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Definitions:

Gear Teeth

The individual protrusions on the rim of a gear that interlock with those on another gear to transmit torque and motion.

Diametral Pitch

A measure of the fineness of the gear teeth, expressed as the number of teeth per inch of the gear's diameter.

Imaginary Circle

A conceptual circle often used in gear design to represent the pitch circle, where the teeth of gears theoretically engage.

Angular Addendums

Additional angular elements or modifications typically at the end of gear teeth to improve function or performance.