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The last waves to report on the seismograph are the:
AThe P-waves
BThe S-waves
CPre-tremors
DSurface waves
Answer & Solution
Correct answer: D. Surface waves
1. P-waves arrive first, S-waves follow with a lag.
2. The surface waves are the last to report.
3. They are also the most destructive of the three.
_Source: NCERT Class 11 Geography, Ch 3 'Interior of the Earth' (kegy203)_
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