Chlorofluorocarbons (CFCs) are substances that pollute the air. These are produced from man-made devices. The use of which of the following commodities does not produce CFCs?

Options

A. Petroleum
B. Refrigerators
C. Aerosol sprays
D. Air conditioners

Answer

To determine which commodity does not produce chlorofluorocarbons (CFCs), we need to analyze the common uses of CFCs and identify which options are not associated with their production.

### Step-by-Step Solution:

1. **Understand CFCs**: Chlorofluorocarbons (CFCs) are man-made compounds that are primarily used in refrigeration, air conditioning, aerosol sprays, and foam-blowing agents. They are known for their role in depleting the ozone layer and contributing to air pollution.

2. **Identify Common Sources of CFCs**:
- **Aerosols and Sprays**: CFCs are commonly used as propellants in aerosol products.
- **Air Conditioners**: CFCs are used as refrigerants in air conditioning systems.
- **Refrigerators**: Similar to air conditioners, refrigerators also use CFCs as refrigerants.
- **Blowing Agents**: CFCs are used in the production of foam products.

3. **Consider the Options**: The question likely provides a list of commodities. We need to identify which of these does not produce CFCs.

4. **Analyze Each Option**:
- If one of the options is **petroleum**, it is important to note that while petroleum can produce pollutants when burned, it does not produce CFCs.
- Other options like aerosol sprays, air conditioners, and refrigerators are known sources of CFCs.

5. **Conclusion**: The commodity that does not produce CFCs is **petroleum** (assuming it is one of the options provided).

### Final Answer:
The use of **petroleum** does not produce chlorofluorocarbons (CFCs).

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