Part A : D.
Reason- It is the only one that gives a proper judgment.
Part B: D.
Reason- It is the only option that goes with Part A.
I hope this helped :)
Soyunghoon Wang
Answer:
Seismic waves are studied by geophysicists called seismologists. Seismic wave fields are recorded by a seismometer, hydrophone (in water), or accelerometer. The propagation velocity of seismic waves depends on density and elasticity of the medium as well as the type of wave.
Explanation:
