Which of the following is the major şource of mercury entering the water bodies ?

Options

A. Fertilisers
B. Industrial waste
C. Insecticides
D. Ignition of weapons

Answer

To determine the major source of mercury entering water bodies, let's analyze each option step by step:

### Step 1: Analyze the options

1. **Fertilizers**: Fertilizers primarily contain nitrogen, phosphorus, and potassium. Mercury is not a significant component of fertilizers. Therefore, fertilizers cannot be a major source of mercury in water bodies.

2. **Industrial Waste**: Many industries use mercury in their processes and often discharge wastewater that contains mercury into nearby water bodies. This makes industrial waste a significant source of mercury pollution.

3. **Insecticides**: While some insecticides may contain various chemicals, mercury is not commonly found in them. Thus, insecticides are not a major source of mercury.

4. **Ignition of Weapons**: The ignition of weapons does not contribute to mercury pollution in water bodies. Mercury is not a major component of weapons, making this option irrelevant.

### Step 2: Conclusion

After analyzing all the options, the major source of mercury entering water bodies is **industrial waste**. Therefore, the correct answer is:

**Option 2: Industrial Waste.**

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