The layer of atmosphere which extends upto 10km from sea level is called

Options

A. Troposphere
B. Stratosphere
C. ionosphere
D. Mesosphere

Answer

To answer the question regarding the layer of the atmosphere that extends up to 10 km from sea level, we can follow these steps:

### Step 1: Identify the Layers of the Atmosphere
The atmosphere is divided into several layers based on altitude. The main layers are:
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere

### Step 2: Determine the Altitude of Each Layer
- **Troposphere**: Extends from sea level up to about 10 km.
- **Stratosphere**: Extends from about 10 km to 50 km.
- **Mesosphere**: Extends from about 50 km to 80-85 km.
- **Thermosphere**: Extends from about 90 km to 500 km.

### Step 3: Match the Given Altitude to the Correct Layer
The question specifies a layer that extends up to 10 km from sea level. Based on our identification:
- The **Troposphere** is the layer that fits this description, as it is the lowest layer of the atmosphere and extends from sea level to approximately 10 km.

### Step 4: Conclusion
Thus, the layer of the atmosphere which extends up to 10 km from sea level is called the **Troposphere**.

### Final Answer
The layer of atmosphere which extends up to 10 km from sea level is called **Troposphere**.

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