Eicchornia (water hyacinth) is sensitive to which kind of pollution ?

Options

A. Faecal matter
B. DDT
C. Fertilizers
D. Pb and Cd

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which type of pollution Eicchornia (water hyacinth) is sensitive to. We need to identify the correct type of pollution from the given options.

2. **Analyzing the Options**:
- **Option 1: Fecal Matter**: This type of pollution is related to biological contaminants and is not specifically linked to Eicchornia.
- **Option 2: DDT (Dichlorodiphenyltrichloroethane)**: This is a pesticide, but Eicchornia is not primarily sensitive to this type of chemical pollution.
- **Option 3: Fertilizers**: While fertilizers can cause water pollution, Eicchornia is not particularly sensitive to them.
- **Option 4: Lead and Cadmium**: These are heavy metals known to cause significant environmental issues. Eicchornia is sensitive to heavy metal pollution, making this option a strong candidate.

3. **Identifying the Correct Answer**: After reviewing all options, it is clear that Eicchornia is sensitive to heavy metal pollution, specifically lead and cadmium.

4. **Conclusion**: The correct answer is **Option 4: Lead and Cadmium**.

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