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Why do we know so much Earth's Composition?

A.Digging to the inner core
B.Looking at the Earth's Magnetic Field
C.Studying Seismic Waves

User VoimiX
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C studying seismic waves
User Janiece
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Answer:

C

Step-by-step explanation:

Since we can't go to the center of Earth, we have to rely on indirect observations of the materials of the interior. The seismic waves are generated by earthquakes and explosions that travel through Earth and across its surface. Thanks to that, it reveals the structure of the interior of the planet. Thousands of earthquakes occur every year, and each one provides a glimpse of the Earth's interior.

User Lecham
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