The harmful Ozone is present in

Options

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

Answer

To solve the question "The harmful ozone is present in," we will analyze the different layers of the Earth's atmosphere and identify where harmful ozone is found.

### Step-by-Step Solution:

1. **Identify the Layers of the Atmosphere**:
- The Earth's atmosphere is divided into several layers: Troposphere, Stratosphere, Mesosphere, and Thermosphere.

2. **Understand the Characteristics of Each Layer**:
- **Troposphere**: This is the lowest layer of the atmosphere where weather events occur. It contains the air we breathe and is where harmful pollutants, including harmful ozone, can accumulate.
- **Stratosphere**: This layer is above the troposphere and contains the ozone layer, which is beneficial as it absorbs harmful ultraviolet (UV) radiation from the sun.
- **Mesosphere**: This layer is above the stratosphere and is where meteors burn up upon entering the Earth's atmosphere.
- **Thermosphere**: This is the outermost layer of the atmosphere, characterized by high temperatures and the presence of ionized gases.

3. **Determine Where Harmful Ozone is Found**:
- Harmful ozone is primarily found in the **Troposphere**. It is a result of pollution and can lead to health issues such as respiratory problems and damage to crops.

4. **Conclusion**:
- Based on the analysis, the correct answer to the question is **A. Troposphere**.

### Final Answer:
The harmful ozone is present in **A. Troposphere**.

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