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Examine the limitations of the continental drift theory. How does the theory of plate tectonics overcome it?

Topic: Salient features of world’s physical geography.

1. Examine the limitations of the continental drift theory. How does the theory of plate tectonics overcome it? (250 words)

Difficulty level: Easy

Reference: Insights on India

Why the question:

The question is part of the static syllabus of General studies paper – 1 and mentioned as part of Mission-2023 Secure timetable.

Key Demand of the question:

Directive word: 

Examine – When asked to ‘Examine’, we must investigate the topic (content words) in detail, inspect it, investigate it and establish the key facts and issues related to the topic in question. While doing so we should explain why these facts and issues are important and their implications.

Structure of the answer:

Introduction: 

Begin by write about plate tectonics and the movement of continents and various theories put forward to explain them.

Body:

Write in brief about the continental drift theory and explains it briefly – forces it considers for the movement, supporting evidences it considers, critique of theory regarding the movement of the continents and its acceptance among scientists etc.

In the next part, write about plate tectonic theory, the mechanism of it and how it successfully explained the movement of continents. Use small and neat diagrams for better representation.

Conclusion:

Mention about general importance of the two theories and conclude your answer.