Depletion of ozone is mainly due to

Options

A. chlorofluorocarbon compounds
B. carbon monoxide
C. methane
D. pesticides

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Ozone Layer**: The ozone layer is a protective layer located in the stratosphere of the Earth's atmosphere. Its primary function is to absorb and block harmful ultraviolet (UV) radiation from the sun.

2. **Importance of Ozone**: The ozone layer plays a crucial role in protecting living organisms from the harmful effects of UV rays, which can lead to various health issues such as skin cancer, cataracts, and skin allergies.

3. **Causes of Ozone Depletion**: The depletion of the ozone layer is primarily caused by human activities that release certain harmful chemicals into the atmosphere.

4. **Key Culprit - Chlorofluorocarbons (CFCs)**: One of the major contributors to ozone depletion is chlorofluorocarbons (CFCs). These compounds are commonly used as refrigerants in air conditioners and refrigerators. When released into the atmosphere, CFCs can break down ozone molecules.

5. **Other Pollutants**: While other pollutants like carbon monoxide, methane, and pesticides contribute to environmental pollution, they are not the primary cause of ozone layer depletion.

6. **Conclusion**: Therefore, the depletion of the ozone layer is mainly due to chlorofluorocarbon compounds (CFCs).

**Final Answer**: The depletion of ozone is mainly due to chlorofluorocarbon compounds (CFCs).

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