Ozone present in troposphere promotes

Options

A. Oxidation of biochemicals
B. destruction of chlorenchyma
C. both (a) and (b)
D. growth of plants

Answer

To solve the question regarding the role of ozone present in the troposphere, we can follow these steps:

### Step 1: Understand the Role of Ozone in the Troposphere
Ozone (O₃) in the troposphere is primarily a result of human activities, such as vehicle emissions and industrial processes. It is important to note that ozone at ground level has different effects compared to ozone in the stratosphere, where it protects us from harmful UV radiation.

**Hint:** Consider the sources of tropospheric ozone and its effects on the environment.

### Step 2: Analyze the Given Options
The question provides several options regarding what is promoted by tropospheric ozone. Let's analyze each option:

1. **Oxidation of Biochemicals**: Ozone is a strong oxidizing agent and can promote the oxidation of various organic compounds in the atmosphere.

**Hint:** Think about how ozone interacts with other chemicals in the atmosphere.

2. **Destruction of Chlorophyll**: Ozone can damage plant tissues, including chlorophyll, which is essential for photosynthesis. This leads to reduced plant growth and health.

**Hint:** Consider the impact of ozone on plant health and growth.

3. **Both A and B**: This option suggests that both the oxidation of biochemicals and destruction of chlorophyll are promoted by tropospheric ozone.

**Hint:** Evaluate if both previous statements are correct.

4. **Growth of Plants**: This option is incorrect because ozone is known to be harmful to plants, inhibiting their growth and causing damage.

**Hint:** Reflect on the relationship between ozone and plant health.

### Step 3: Determine the Correct Answer
After analyzing the options:
- Option 1 is correct as ozone promotes the oxidation of biochemicals.
- Option 2 is also correct since ozone can destroy chlorophyll.
- Therefore, option 3 (both A and B) is the correct answer.
- Option 4 is incorrect as ozone does not promote plant growth.

### Final Answer
The correct answer is **Option 3: Both A and B**.