These changes made the scientists think of the physical properties of various depths of the earth's interior.
a.changes of rock formation
b.changes on bodies of water
c.changes in temperature
d.changes in the speed of earthquake vibration.
a.changes of rock formation
b.changes on bodies of water
c.changes in temperature
d.changes in the speed of earthquake vibration.
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Answer:
D.
Explanation:
Temperature tends to lower the speed of seismic waves and pressure tends to increase the speed. Pressure increases with depth in Earth because the weight of the rocks above gets larger with increasing depth.