List-I (Theories of Cavern formation) List-II (Scholars) I. Two cycle theory A. Swinnerton II. Water table theory B. Gardner III. Static water zone theory C. Marott IV. Invasion theory D. Davis
Codes :
| I | II | III | IV |
| D | A | B | C |
This question requires matching specific theories of cavern formation from List-I with the scholars who proposed them in List-II.
Based on established geological and geomorphological contributions, the correct pairings are as follows:
The correct matching, corresponding to Option 2, is presented below:
| List-I Theory | List-II Scholar |
| I. Two cycle theory | D. Davis |
| II. Water table theory | A. Swinnerton |
| III. Static water zone theory | B. Gardner |
| IV. Invasion theory | C. Marott |
Therefore, the correct code is D, A, B, C for I, II, III, IV respectively.
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The discontinuity present in earth's interior between lower mantle and outer core is called _________.
Which of the following igneous rocks contain silica in excess of 65%?
Which one of the following describes the Lithosphere?