D D T is:

Question

D D T is:

Accepted Answer

The correct answer is: **2. Non-degradable pollutant**

### Explanation:

**DDT (Dichloro-Diphenyl-Trichloroethane)** is a synthetic pesticide that was widely used for agricultural and vector control purposes, particularly to combat malaria-carrying mosquitoes. Here’s a detailed analysis of the options:

1. **An antibiotic**: This option is incorrect. DDT is not an antibiotic; it is a pesticide. Antibiotics are substances that kill or inhibit the growth of bacteria, while DDT is used to kill insects.

2. **Non-degradable pollutant**: This is the correct answer. DDT is classified as a non-degradable pollutant because it does not break down easily in the environment. It can persist for many years, accumulating in the tissues of living organisms through a process known as bioaccumulation. This characteristic has led to significant environmental and health concerns, including its impact on wildlife and potential effects on human health.

3. **Degradable Fertilizer**: This option is incorrect. DDT is not a fertilizer, nor is it degradable. Fertilizers are substances that provide essential nutrients to plants, while DDT is a chemical used to kill pests.

4. **Dichlorodifluro Titanium**: This option is also incorrect. DDT stands for Dichloro-Diphenyl-Trichloroethane, not Dichlorodifluro Titanium. The name provided in this option does not correspond to DDT and is therefore misleading.

### Conclusion:
DDT is a non-degradable pollutant that poses risks to the environment and human health due to its persistence and bioaccumulation. This makes option 2 the correct choice, while the other options are incorrect for the reasons outlined above.