What region are u referring to?
Answer:
7x+3
Explanation:
i mighit if it dosent work try 7x-7 it 1 or the other
D make ah model or a one of those
Answer:
Scientists are able to understand Earth's interior by studying seismic waves.
Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
