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The wearing down of relief by exogenic forces is called:

AEpeirogeny
BDegradation
CAggradation
DDiastrophism
Answer & Solution
Correct answer: B. Degradation
1. Filling up of basins is aggradation. 2. Wearing down is degradation. 3. Together they make up gradation. _Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 6, Geomorphic Processes._
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