P Waves Moving Through the Base of Continents Move at About

question 13

Multiple Choice

P waves moving through the base of continents move at about ________ km/sec, but once they cross the Moho, the velocity changes to ________ km/sec.

• A)8; 4
• B)2; 10
• C)6; 8
• D)3; 9

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Definitions:

Two-Word Stage

Beginning about age 2, the stage in speech development during which a child speaks mostly in two-word statements.

Language Development

The process by which individuals acquire the ability to comprehend and communicate through language, including spoken, written, and sign languages.

Months

Units of time in calendars that approximately correspond to the period of the lunar cycle, used to segment the year.

Howard Gardner

A developmental psychologist best known for his theory of multiple intelligences, which proposes that people have different kinds of intelligences.