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Mathematics 8 Online
OpenStudy (anonymous):

I need help with a science question, no 1 in there is helping :/ will metal

OpenStudy (anonymous):

How do earthquakes help us learn about the interior of the Earth?

OpenStudy (anonymous):

I guess they would help by allowing us to study the patterns of the waves when there is an earthquake, what is effected and how it is effected and so on.

OpenStudy (whpalmer4):

the time that the different signals take to travel through different types of structure and material gives us sort of an "x-ray" of the interior.

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