List - I
(Scholar)List - II
(Theory)(a) Hall and Dana (i) Sea floor Spreading (b) Hutton (ii) Thermal Contraction Theory (c) Harry Hess (iii) Theory of Geosyncline (d) Jeffrey (iv) Doctrine of Uniformitarianism
Code :
This question requires matching scholars from List-I with their corresponding theories from List-II. Let's analyze each scholar:
| Scholar (List - I) | Theory (List - II) | Reasoning |
|---|---|---|
| (a) Hall and Dana | (iii) Theory of Geosyncline | James Hall and James Dwight Dana independently developed the concept of geosynclines to explain mountain formation. |
| (b) Hutton | (iv) Doctrine of Uniformitarianism | James Hutton, considered the father of modern geology, proposed that geological processes operating today are the same as those that operated in the past. |
| (c) Harry Hess | (i) Sea floor Spreading | Harry Hess proposed the theory of sea-floor spreading in the early 1960s, suggesting that new oceanic crust is formed at mid-ocean ridges. |
| (d) Jeffrey | (ii) Thermal Contraction Theory | Sir Harold Jeffreys proposed the Thermal Contraction Theory to explain the origin of continents and mountains, although it has been largely replaced by plate tectonics. |
Based on the individual matches:
This combination corresponds to the code (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii).
Marble is the metamorphosed form of?
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