The history of the crust of the earth was explained by Lyell as due to a process of slow development, in order to effect which he called in no cataclysmic agencies, no mysterious forces differing from those operating at the present day. [Please select]
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At once it seemed as if some cataclysmic upheaval were in progress. [Please select]
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As not so calamitous as a cataclysmic annihilation of the planet in consequence of a collision with a dark sun. [Please select]
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