Chlorofluorocarbon (CFC) is another kind of pollutant that causes damage to the environment. Which of the following statements is correct regarding the environmental problem caused by CFCs?

Options

A. It causes acid rain.
B. It reduces the visibility.
C. It causes global warming.
D. It damages the ozone layer.

Answer

**Step-by-Step Solution:**

1. **Understanding CFCs**: Chlorofluorocarbons (CFCs) are man-made chemical compounds that are primarily used as refrigerants and solvents. They are known to be pollutants that can cause environmental damage.

2. **Identifying the Problem**: When CFCs are released into the atmosphere, they contribute to environmental issues. One of the significant problems associated with CFCs is their effect on the ozone layer.

3. **Ozone Layer Damage**: CFCs release chlorine atoms when they are broken down by ultraviolet (UV) radiation in the stratosphere. These chlorine atoms can react with ozone (O3) molecules, leading to the depletion of the ozone layer, which protects the Earth from harmful UV radiation.

4. **Evaluating Other Options**: While CFCs are pollutants, they are not primarily responsible for acid rain (which is mainly caused by sulfur dioxide and nitrogen oxides), nor are they the main contributors to global warming (which is primarily due to carbon dioxide and methane). They also do not significantly reduce visibility, which is more related to smoke and particulate matter.

5. **Conclusion**: The correct statement regarding the environmental problem caused by CFCs is that they damage the ozone layer.

**Final Answer**: CFCs damage the ozone layer.

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