Transitional layer between stratosphere and mesosphere is

Options

A. Troposphere
B. Lithosphere
C. Stratopause
D. Traopoapause

Answer

To solve the question regarding the transitional layer between the stratosphere and the mesosphere, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Layers of the Atmosphere**: The Earth's atmosphere is divided into five distinct layers:
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Exosphere

2. **Identify the Relevant Layers**: The question specifically asks about the transitional layer between the stratosphere and the mesosphere.
- The stratosphere is located above the troposphere and extends up to about 30 kilometers.
- The mesosphere is located above the stratosphere and extends from about 50 kilometers to 85 kilometers.

3. **Determine the Transitional Layer**: The layer that separates the stratosphere from the mesosphere is known as the stratopause.
- The stratopause is located at an altitude of approximately 50 kilometers.

4. **Review the Options**: The options provided in the question are:
- Troposphere
- Lithosphere
- Stratopause
- Tropopause

5. **Select the Correct Answer**: Based on the understanding that the stratopause is the transitional layer between the stratosphere and mesosphere, the correct answer is:
- **Stratopause (Option 3)**.

### Final Answer:
The transitional layer between the stratosphere and mesosphere is called the **stratopause**.

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