Globally,on Average Test Scores of Eighth-Grade Math and Science Students,the

question 41

Multiple Choice

Globally,on average test scores of eighth-grade math and science students,the U.S.ranks (as of 2011) :

• A) 5^th and 7^th,respectively.
• B) 1^st and 1^st,respectively.
• C) 9^th and 10^th,respectively.
• D) 8^th and 6^th,respectively.

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Definitions:

Hearing

The physiological process by which sound waves are translated into electrical signals that the brain interprets as sound.

Decibels

A unit of measurement for the intensity of sound, representing the ratio between two quantities and often used to describe noise levels.

Air Pressure Waves

Variations in the pressure of air that are primarily responsible for the propagation of sound.

Neural Messages

Electrical and chemical signals transmitted by neurons to communicate information throughout the body and brain.