The air of earth's atmosphere responsible for absorbing a large portion of ultraviolet radiations by the sun is

Options

A. mesosphere
B. troposhere
C. ozone layer
D. ionosphere

Answer

To solve the question regarding which part of Earth's atmosphere absorbs a large portion of ultraviolet (UV) radiation from the Sun, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ultraviolet Radiation**:
- Ultraviolet radiation is a type of electromagnetic radiation emitted by the Sun. It is divided into three types: UVA, UVB, and UVC, with UVC being the most harmful.

2. **Role of the Atmosphere**:
- The Earth's atmosphere plays a crucial role in protecting life on Earth by absorbing and scattering harmful UV radiation.

3. **Identifying the Key Component**:
- Among the various gases present in the atmosphere, one specific layer is known for its ability to absorb a significant amount of UV radiation.

4. **The Ozone Layer**:
- The ozone layer, located in the stratosphere, contains a high concentration of ozone (O₃) molecules. This layer absorbs the majority of the Sun's harmful UV radiation, particularly UVB and UVC.

5. **Conclusion**:
- Therefore, the air of Earth's atmosphere responsible for absorbing a large portion of ultraviolet radiation from the Sun is the ozone layer.

### Final Answer:
The correct answer is the **ozone layer**.

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