Choose the biodegradable pollutant out of the following.

Options

A. DDT
B. Polyglycolic acid
C. Alkyl benzene sulphonate
D. Mercury

Answer

To determine the biodegradable pollutant from the given options, we need to understand what biodegradable pollutants are and analyze each option accordingly.

### Step-by-Step Solution:

1. **Definition of Biodegradable Pollutants**:
- Biodegradable pollutants are substances that can be broken down into smaller, non-toxic components by the action of microorganisms, such as bacteria and fungi. This breakdown typically occurs through enzyme-catalyzed reactions.

2. **Analyzing the Options**:
- The options provided are:
- DDT (Dichlorodiphenyltrichloroethane)
- Polyglycolic acid (PGA)
- Alkyl benzene sulfonate
- Mercury

3. **Evaluating Each Option**:
- **DDT**: This is a synthetic pesticide that is known to be persistent in the environment and does not biodegrade easily. Therefore, it is not a biodegradable pollutant.
- **Polyglycolic Acid (PGA)**: This is a biodegradable polymer that can be broken down by microorganisms. It is used in various applications, including medical sutures, and is recognized for its biodegradability.
- **Alkyl Benzene Sulfonate**: This compound is often used in detergents and is known to be non-biodegradable, causing environmental concerns.
- **Mercury**: This heavy metal is highly toxic and does not biodegrade. It accumulates in the environment and poses significant health risks.

4. **Conclusion**:
- Among the options, **Polyglycolic Acid (PGA)** is the only biodegradable pollutant. It can be broken down by microorganisms, making it environmentally friendly compared to the other options listed.

### Final Answer:
The biodegradable pollutant is **Polyglycolic Acid (PGA)**.

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