What evidence do we have that the earth has a liquid core?
A. The S waves shadow zone
B. Refraction of seismic waves
C. Reflection of seismic waves
D. The time lag between P and S waves
A. The S waves shadow zone
B. Refraction of seismic waves
C. Reflection of seismic waves
D. The time lag between P and S waves
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Answer:
based on my research, the answer is letter D