Mark the odd one w.r.t. anthropogenic pollution

Options

A. Particulate matter by volcanoes
B. Thermal power plant
C. Flour mill dust
D. Pesticides

Answer

**Step-by-Step Solution:**

1. **Understand the Concept of Anthropogenic Pollution:**
- Anthropogenic pollution refers to pollution that is a result of human activities. It is also known as man-made pollution. This includes various activities such as deforestation, mining, burning of fossil fuels, and the use of chemicals like fertilizers and pesticides.

2. **Analyze the Given Options:**
- The options given are:
1. Particulate matter by volcanoes
2. Thermal power plant
3. Fluorine dust
4. Pesticides

3. **Identify the Nature of Each Option:**
- **Particulate matter by volcanoes:** This is a result of natural volcanic eruptions, which release ash and gases into the atmosphere. Therefore, it is classified as natural pollution.
- **Thermal power plant:** This generates electricity by burning fossil fuels, which is a human activity. Thus, it is considered anthropogenic pollution.
- **Fluorine dust:** This can originate from industrial processes and is typically associated with human activities, making it anthropogenic pollution.
- **Pesticides:** These are chemicals used in agriculture that are manufactured and applied by humans, thus they are also a form of anthropogenic pollution.

4. **Determine the Odd One Out:**
- Among the options, particulate matter from volcanoes is the only one that is a result of a natural process. The other three options (thermal power plant, fluorine dust, and pesticides) are all associated with human activities.

5. **Conclusion:**
- The odd one out with respect to anthropogenic pollution is **particulate matter by volcanoes**.

**Final Answer:** Particulate matter by volcanoes

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