Question : In the 1930s, which of the following theories was propounded by Arthur Holmes about the mantle?
Option 1: Theory of Faunal Succession
Option 2: Slab Pull Theory
Option 3: Convectional Current Theory
Option 4: Theory of Faulting
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Correct Answer: Convectional Current Theory
Solution : The correct option is the Convectional Current Theory.
In the 1930s, Arthur Holmes proposed the theory of mantle convection. This concept was crucial in the development of the modern understanding of plate tectonics and the movement of the Earth's lithospheric plates. The heat that is generated is due to the radioactive chemicals.
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