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The stress developed in the top layers of the rocks which disintegrate due to repeated variations in temperatures is ________

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The stress developed in the top layers of the rocks which disintegrate due to repeated variations in temperatures is ________

(a) Tensile stress

(b) Compressive stress

(c) Shear stress

(d) Bending stress

I have been asked this question in semester exam.

Origin of the question is Geological Work of Atmosphere topic in division Geological Work of Natural Resources of Engineering Geology

1 Answer

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The correct option is (a) Tensile stress

For explanation: Repeated variations in temperature experienced by a body of rock gradually break it into smaller pieces, especially in the top layers, by development of tensile stresses developing from alternate expansion and contraction.

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