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The S-wave shadow zone covers a little over what share of the earth's surface?
A60 per cent
B40 per cent
C10 per cent
D25 per cent
Answer & Solution
Correct answer: B. 40 per cent
1. The whole zone beyond 105 degrees lacks S-waves.
2. It is just over 40 per cent of the surface.
3. The P-wave shadow is a narrower band.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._
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