Which of the following statements is/are correct ?
(A) Catalytic , converters have expensive metals like platinum , palladium and rhodium as a catalyst.
(B) Air act was amended in the year 1987 to include noise as a pollutant.
(C) A scrubber can remove gases like sulphur dioxide from polluted air .
(D) ESP can remove 99% particulate matter from the exhaust of Vehicles.

Options

A. (A), (B) and (C)
B. (B), (C) and (D)
C. (C) and (D)
D. (A), (B), (C) and (D)

Answer

To determine which statements are correct regarding environmental science, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement A**: "Catalytic converters have expensive metals like platinum, palladium, and rhodium as a catalyst."
- **Analysis**: Catalytic converters are indeed devices used in automobiles to reduce harmful emissions. They contain catalysts made from precious metals such as platinum, palladium, and rhodium, which facilitate the conversion of harmful gases into less harmful substances.
- **Conclusion**: **Correct**

2. **Statement B**: "Air Act was amended in the year 1987 to include noise as a pollutant."
- **Analysis**: The Air (Prevention and Control of Pollution) Act was enacted in 1981 and was amended in 1987. The amendment included provisions to address noise pollution as part of air pollution control.
- **Conclusion**: **Correct**

3. **Statement C**: "A scrubber can remove gases like sulphur dioxide from polluted air."
- **Analysis**: Scrubbers are air pollution control devices that can remove various gases, including sulfur dioxide, from industrial exhaust streams. They are effective in reducing emissions of harmful gases.
- **Conclusion**: **Correct**

4. **Statement D**: "ESP can remove 99% particulate matter from the exhaust of vehicles."
- **Analysis**: An Electrostatic Precipitator (ESP) is a device used to remove particulate matter from exhaust gases. While ESPs are highly efficient and can remove up to 99% of particulate matter, they are more commonly associated with industrial applications rather than vehicle exhaust specifically.
- **Conclusion**: **Correct**

### Final Conclusion:
All statements A, B, C, and D are correct.