The correct increasing order of the following with respect to temperature range
I) Troposphere
II) Stratosphere
III) Thermosphere

Options

A. II,I,III
B. II,III,I
C. III,I,II
D. I,II,III

Answer

To determine the correct increasing order of the temperature ranges for the layers of the Earth's atmosphere (Troposphere, Stratosphere, and Thermosphere), we need to analyze the temperature ranges for each layer.

### Step-by-Step Solution:

1. **Understanding the Troposphere:**
- The Troposphere is the lowest layer of the atmosphere, starting from the Earth's surface.
- The temperature at the surface is approximately 17°C.
- As we ascend in the Troposphere, the temperature decreases due to the decreasing density of gases.
- The temperature can drop to about -51°C at the upper boundary of the Troposphere.
- **Temperature Range:** 17°C to -51°C (which means it decreases).

2. **Understanding the Stratosphere:**
- The Stratosphere lies above the Troposphere and contains the ozone layer.
- Ozone absorbs solar radiation, which leads to an increase in temperature in this layer.
- The temperature in the Stratosphere ranges from -51°C (at the boundary with the Troposphere) to about 15°C.
- **Temperature Range:** -51°C to 15°C (which means it increases).

3. **Understanding the Thermosphere:**
- The Thermosphere is the outermost layer of the Earth's atmosphere.
- It is characterized by very high temperatures due to the absorption of high-energy solar radiation.
- The temperature in the Thermosphere can range from about 500°C to 2000°C.
- **Temperature Range:** 500°C to 2000°C (which means it is the highest).

4. **Comparing the Temperature Ranges:**
- Troposphere: -51°C to 17°C (lowest temperature range)
- Stratosphere: -51°C to 15°C (higher than Troposphere)
- Thermosphere: 500°C to 2000°C (highest temperature range)

5. **Correct Increasing Order:**
- Based on the analysis, the correct increasing order of the temperature ranges is:
- Troposphere < Stratosphere < Thermosphere

### Final Answer:
**The correct increasing order of the temperature ranges is:**
**I) Troposphere < II) Stratosphere < III) Thermosphere**