Question

Q.5. Give geographical reasons.
1) Primary or 'p' waves are also called forward-backwards waves.
2 ) Secondary waves are more destructive than primary waves
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Answer 1

Answer:

S waves are called secondary waves because they always arrive after P waves at seismic recording stations. Unlike P waves, S waves can travel only through solid materials. After both P and S waves have moved through the body of Earth, they are followed by surface waves, which travel along Earth's surface.

Explanation:

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