An object is located at a height of 18 km from the surface of earth . The object is located in

Options

A. thermosphere
B. measosphere
C. ionosphere
D. stratosphere.

Explanation

To determine the layer of the Earth's atmosphere in which an object located at a height of 18 km is situated, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Layers of the Atmosphere:**
- The atmosphere is divided into several layers based on altitude:
- **Troposphere:** Extends from 0 km to 12 km.
- **Stratosphere:** Extends from 12 km to 50 km.
- **Mesosphere:** Extends from 50 km to 80 km.
- **Thermosphere:** Extends from 80 km to 700 km.
- **Exosphere:** Extends from 700 km to 10,000 km.

2. **Locate the Given Height:**
- The object is located at a height of **18 km** from the surface of the Earth.

3. **Determine the Layer:**
- Since the height of 18 km is greater than 12 km but less than 50 km, we can conclude that the object is located in the **Stratosphere**.

4. **Final Answer:**
- Therefore, the object is located in the **Stratosphere**.