Ozone layer occurs in

Options

A. Troposphere
B. Hydrosphere
C. Stratosphere
D. Lithosphere.

Answer

**Step-by-Step Solution:**

1. **Understanding the Atmosphere**: The Earth's atmosphere is divided into several layers, each with different characteristics and functions. These layers include the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

2. **Identifying the Ozone Layer**: The ozone layer is a region of the atmosphere that contains a high concentration of ozone (O₃) gas. It plays a crucial role in absorbing the majority of the sun's harmful ultraviolet (UV) radiation.

3. **Locating the Ozone Layer**: The ozone layer is primarily located in the stratosphere, which is the second layer of the atmosphere, situated above the troposphere. The stratosphere extends from about 10 to 50 kilometers above the Earth's surface.

4. **Height of the Ozone Layer**: Specifically, the ozone layer is found at an altitude of approximately 26 to 30 kilometers above the Earth's surface within the stratosphere.

5. **Importance of the Ozone Layer**: The ozone layer acts as a protective shield, preventing harmful UV-B radiation from reaching the Earth's surface, which can cause skin cancer and other environmental issues.

6. **Conclusion**: Based on the information gathered, the ozone layer occurs in the stratosphere.

**Final Answer**: The ozone layer occurs in the stratosphere.

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