Earth's Internal Layers Were Discovered by Studying the Propagation of P-

question 131

Multiple Choice

Earth's internal layers were discovered by studying the propagation of P- and S- waves through Earth's interior.In comparison to P-waves,the movement of S-waves are

• A)faster and compresses and expands the rock as they move through it.
• B)faster and vibrates rock particles up and down and side-to-side.
• C)slower and can travel through solid granite,magma,water or air.
• D)slower and they can only travel through solids,not liquids.

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Definitions:

Linear Model

A statistical approach to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Contestant

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Least Squares Regression

A statistical method that finds the best-fitting line through data points by minimizing the sum of the squared differences between observed and predicted values.

Scatter Diagram

A graphical representation that displays the relationship between two quantitative variables by plotting them as points in a coordinate system.