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The shear stress at a mountain's base must stay below the critical stress at which rocks:
AGlow
BFlow
CFreeze
DMelt
Answer & Solution
Correct answer: B. Flow
1. The base is not under uniform compression.
2. There is a shear component.
3. Too much shear and the rocks would flow.
_Source: NCERT Class 11 Physics Part II, Chapter 9, Mechanical Properties of Solids._
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