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Post-drift studies and Convectional Current Theory
In Class 11 Geography, this topic from “Distribution of Oceans and Continents” examines how later studies developed and evaluated the continental drift idea. Students review evidence such as matching coastlines, fossils, rock formations and past climates, while also considering the limitations of Wegener’s explanation. The Convectional Current Theory is introduced to explain how heat-driven currents within the mantle could move large crustal blocks and help account for the changing arrangement of oceans and continents.
Medium · Level 7 · 1 questions
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Earth's surface is completely immobile
Earth's outer surface is mobile in the form of plates
Oceans are formed only by rainfall
Continental shape has no importance
Question 1MediumLevel 7
What was the broadest conclusion of post-drift studies?पोस्ट ड्रिफ्ट अध्ययन का सबसे व्यापक निष्कर्ष क्या था?
Correct answer:सही उत्तर:B
Post-drift studies helped understand Earth's outer surface as moving plates. Treat this as the foundation of plate tectonics in exams.पोस्ट ड्रिफ्ट अध्ययनों ने पृथ्वी की बाहरी सतह को गतिशील प्लेटों के रूप में समझने में मदद की। परीक्षा में इसे प्लेट विवर्तनिकी की आधारभूमि मानें।
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