The Mantle Can Be Separated into Two Different Portions: the Lower

question 66

Multiple Choice

The mantle can be separated into two different portions: the lower mantle and the upper mantle.The lower mantle is

• A)completely solid due to extreme pressure that prevents iron-rich silica rocks from melting.
• B)composed of silly putty that flows like molasses.
• C)rigid and has no capability of flow.
• D)predominantly liquid silica.

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Independent Variable

The variable in an experiment or study that is manipulated or changed to observe its effect on the dependent variable.

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