What is the major cause of ozone layer destruction?

Explanation

### Step-by-Step Solution:

1. **Understanding the Ozone Layer**: 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 protecting life on Earth by absorbing the majority of the sun's harmful ultraviolet (UV) radiation.

2. **Identifying Major Causes of Ozone Layer Destruction**: The major causes of ozone layer destruction are chlorofluorocarbons (CFCs) and nitrogen dioxide (NO2).

3. **Role of CFCs**:
- CFCs are man-made compounds that were commonly used in refrigeration, air conditioning, and aerosol propellants.
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