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The zone separating the troposphere from the stratosphere is the:

AIonosphere
BTropopause
CMesopause
DStratopause
Answer & Solution
Correct answer: B. Tropopause
1. Temperature there is nearly constant. 2. It is the tropopause. 3. It is about minus 80 C over the equator. _Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._
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