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Plate Tectonics was put forward in 1967 by McKenzie, Parker and independently by:

ABullard
BHolmes
CWegener
DMorgan
Answer & Solution
Correct answer: D. Morgan
1. Sea floor spreading revived the question. 2. Morgan worked independently of McKenzie and Parker. 3. A plate is a slab of solid rock. _Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 4, Distribution of Oceans and Continents._
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