Why Might There Be Density Changes Between Different Parts of the Same

question 38

Multiple Choice

Why might there be density changes between different parts of the same layer of the planet?

• A)Different materials make up different regions of the same layer.
• B)Some materials may compress when squeezed by overlying rock.
• C)Repelling forces may cause some atoms to expand.
• D)Differentiation is still separating materials into distinct interior layers.

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