"Good ozone" is found in:

Options

A. mesosphere
B. troposphere
C. stratosphere
D. ionosphere

Answer

**Step-by-Step Solution:**

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

2. **Identifying the Troposphere:**
- The troposphere is the lowest layer of the atmosphere, extending up to about 10 kilometers in height. It is where we live and contains most of the atmosphere's water vapor and weather phenomena.

3. **Identifying the Stratosphere:**
- Above the troposphere is the stratosphere, which extends from about 10 kilometers to approximately 50 kilometers in height. This layer is crucial for containing the ozone layer.

4. **Understanding Ozone in the Stratosphere:**
- The ozone present in the stratosphere is often referred to as "good ozone." It plays a vital role in absorbing harmful ultraviolet (UV) radiation from the sun and converting it into heat energy, thereby protecting life on Earth.

5. **Conclusion:**
- Based on the information about the layers of the atmosphere and the presence of ozone, we conclude that "good ozone" is found in the stratosphere.

**Final Answer:**
- Good ozone is found in the **stratosphere**.

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