Tropopause is :
- AA region between troposphere and stratosphere.
- BA natural umbrella above volcanic eruptions.
- CBoth (A) and (B)
- DNeither (A) nor (B)
Solution & Step-by-step Explanation
The tropopause is defined as the transitional thermodynamic boundary layer in the Earth's atmosphere that separates the troposphere below from the stratosphere above, where the temperature lapse rate stops decreasing with height.