Ozonosphere occurs at a height os

Options

A. 8-10 km above poles
B. 8-10 km above equator
C. 11-16 km above poles
D. 11-16 km above equator.

Answer

### Step-by-Step Solution:

1. **Understanding the Ozonosphere**: The ozonosphere, commonly referred to as the ozone layer, is a region of Earth's stratosphere that contains a high concentration of ozone (O3) molecules. It plays a crucial role in absorbing the majority of the sun's harmful ultraviolet radiation.

2. **Location of the Ozonosphere**: The ozonosphere is located within the stratosphere layer of the atmosphere. The stratosphere is the second major layer of Earth's atmosphere, situated above the troposphere and below the mesosphere.

3. **Height of the Ozonosphere**: The height of the ozonosphere varies, but it is generally found at an altitude of approximately 11 to 16 kilometers above the Earth's surface, particularly above the poles.

4. **Evaluating Options**: When presented with multiple-choice options regarding the height of the ozonosphere, we can analyze each one:
- **Option A**: 8 to 10 kilometers above poles - Incorrect, as it is below the actual height.
- **Option B**: 8 to 10 kilometers above equator - Incorrect, as it does not correspond to the correct height.
- **Option C**: 11 to 16 kilometers above poles - Correct, as this matches the known altitude of the ozonosphere.
- **Option D**: 11 to 16 kilometers above equator - Incorrect, as the correct range is specifically above the poles.

5. **Conclusion**: The correct answer is that the ozonosphere occurs at a height of **11 to 16 kilometers above the poles**.