The atmosphere above the height of 80 km is called

Options

A. stratosphere
B. Troposphere
C. mesosphere
D. Thermosphere

Answer

To solve the question regarding the atmosphere above the height of 80 km, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Layers of the Atmosphere**: The Earth's atmosphere is divided into several layers based on altitude. The main layers are:
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere

2. **Identify the Height of Each Layer**:
- **Troposphere**: Extends from 0 km to approximately 12 km.
- **Stratosphere**: Extends from 12 km to about 50 km.
- **Mesosphere**: Extends from 50 km to about 80 km.
- **Thermosphere**: Extends from 80 km to approximately 700 km.

3. **Determine Which Layer is Above 80 km**:
- Since the question asks for the atmosphere above 80 km, we need to identify the layer that starts at 80 km and goes higher.
- The **Thermosphere** is the layer that begins at 80 km and extends up to around 700 km.

4. **Conclusion**: Based on the information about the layers of the atmosphere, the correct answer to the question is **Thermosphere**.

### Final Answer:
The atmosphere above the height of 80 km is called the **Thermosphere**.

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