Question

The tropopause is characterized by

• A. Increase in temperature with height
• B. Decrease in temperature with height
• C. Nearly constant temperature with height
• D. Sudden increase in pressure

Hint:

Atmospheric temperature variation: \[ \boxed{ \begin{aligned} \text{Troposphere} &\rightarrow \text{Temperature decreases with height}\\ \text{Tropopause} &\rightarrow \text{Nearly constant temperature}\\ \text{Stratosphere} &\rightarrow \text{Temperature increases with height} \end{aligned} } \]

Answer 1

The Correct Option is C

Step 1: Recall the atmosphere's temperature profile.
In the troposphere, temperature falls steadily with height, while in the stratosphere above it, temperature rises again because ozone absorbs UV radiation.
Step 2: Look at what happens in between.
The tropopause is the thin transition layer separating these two regions, where the falling and rising trends meet.
Step 3: State the characteristic behaviour.
Through this layer the temperature stays nearly constant with height rather than continuing to fall or starting to rise sharply.
\[ \boxed{\text{Nearly constant temperature with height}} \]