Ecofriendly method is

Options

A. use of CNG (Compressed Natural Gas) in automoblies
B. energy planation
C. both (1) and (2)
D. use of sulphur rich petrol

Answer

**Step-by-Step Solution:**

1. **Understanding Eco-Friendly Methods:**
- Eco-friendly methods are practices or technologies that do not harm the environment or ecosystem. They promote sustainability and reduce pollution.

2. **Analyzing the Options:**
- **Option 1: Use of CNG in Automobiles**
- CNG (Compressed Natural Gas) is a cleaner alternative to petrol and diesel. It produces fewer emissions and is less harmful to the environment. Therefore, this method is considered eco-friendly.

- **Option 2: Energy Plantation**
- Energy plantation involves cultivating plants specifically for biofuel production. Biofuels are derived from renewable resources and can reduce reliance on fossil fuels, making this method eco-friendly as well.

- **Option 3: Both First and Second**
- This option suggests that both the use of CNG and energy plantation are eco-friendly methods. Since both options 1 and 2 are indeed eco-friendly, this option is valid.

- **Option 4: Use of Sulphur Rich Petrol**
- Sulphur-rich petrol contains high levels of sulphur, which can lead to increased pollution and harm the ecosystem. Therefore, this method is not eco-friendly.

3. **Conclusion:**
- Since options 1 and 2 are eco-friendly, the correct answer is **Option 3: Both First and Second**.

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