Which of the following statement 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 thining of ozone layer of stratosphere at some places
D. Ozone hole means vanishing of ozone layer around the earth completely

Explanation

To determine which statement regarding the ozone hole is correct, let's analyze each option step by step:

1. **Statement A**: "Ozone hole is formed in the stratosphere from which ozone oozes out."
- This statement is misleading. The ozone hole is not a physical hole from which ozone escapes; rather, it refers to the thinning of the ozone layer in the stratosphere due to chemical reactions.

2. **Statement B**: "Ozone hole is formed in the troposphere from which it oozes out."
- This statement is incorrect. The ozone hole is specifically associated with the stratosphere, not the troposphere. The troposphere is the lowest layer of the atmosphere, and the ozone layer that protects us from UV radiation is located in the stratosphere.

3. **Statement C**: "Ozone hole is thinning of ozone layer of stratosphere at some places."
- This statement is correct. The term "ozone hole" refers to the thinning of the ozone layer in the stratosphere, particularly over Antarctica, where the depletion is most significant. It does not imply a complete vanishing of ozone but rather a reduction in concentration.

4. **Statement D**: "Ozone hole means vanishing of ozone layer around the earth completely."
- This statement is incorrect. The ozone hole does not mean that the ozone layer has vanished completely; it indicates a significant reduction in ozone concentration in specific areas.

Based on the analysis, the correct answer is **Statement C**: "Ozone hole is thinning of ozone layer of stratosphere at some places."