Which of the following statements is correct

Options

A. Ozone hole is a hole formed in stratosphere from which ozone oozes out
B. Ozone hole is a hole formed in troposphere from which ozone oozes out
C. Ozone hole is thinning of ozone layer of stratosphere at some place
D. Ozone hole means vanishing of ozone layer around the earth completely

Explanation

To determine which of the statements regarding the ozone hole is correct, let's analyze each statement step by step.

### Step 1: Understand the Ozone Hole
The ozone hole refers to a significant thinning of the ozone layer in the stratosphere, particularly over Antarctica. It is not a literal hole but rather an area where the concentration of ozone (O₃) is significantly reduced.

### Step 2: Evaluate the Statements
1. **Statement 1**: "Ozone hole is a hole formed in stratosphere from which ozone oozes out."
- This statement is incorrect. The ozone hole is not a physical hole from which ozone escapes; it is a region where the ozone concentration is lower than normal.

2. **Statement 2**: "Ozone hole is a thinning of ozone layer of stratosphere at some place."
- This statement is correct. The ozone hole represents a localized thinning of the ozone layer, particularly noted in the polar regions.

3. **Statement 3**: "Ozone holes means vanishing of ozone layer around the earth completely."
- This statement is incorrect. While the ozone layer is depleted in certain areas, it does not mean that the ozone layer has vanished completely around the Earth.

### Step 3: Conclusion
Based on the evaluation of the statements, the correct statement is:
- **Statement 2**: "Ozone hole is a thinning of ozone layer of stratosphere at some place."